Clark Kent / Superman

Kal-El / Clark Kent / Superman (portrayed by Tyler Hoechlin; seasons 1-present; Dylan Kingwell as a teenage Clark in season one, Josh Zaharia as a teenage Clark in season two, Thomas Hoeving as a child, Parker Cousineau during his grade school years, Lennix James as a 4-year-old Clark) is a superhero from Krypton who defends Earth and is Lois' husband.^[2]

In season one after losing his job at the Daily Planet and his mother dying of a stroke, Clark relocates the family to Smallville for a fresh start and becomes the assistant football coach in Smallville High School. Hoechlin previously portrayed Clark in a recurring role in Supergirl, where the character was introduced, before appearing in guest roles in Arrow, The Flash, Legends of Tomorrow, and Batwoman.

In season two, Clark starts to have strange visions and butts heads with Lt. General Mitch Anderson. A scan by Lara Lor-Van's A.I. at Tal-Rho's lair reveals that they are being caused by an "invasive cosmological event". This would lead to an encounter with Bizarro and a fight against Ally Allston. Following the defeat against Ally Allston and her Bizarro counterpart, Superman builds a new Fortress of Solitude in the ocean for his family.

In season three, Clark works to train Jordan in using his powers. In addition, he also goes to work for Chrissy.

• Hoechlin also portrays an evil version of Superman from another Earth. His history in the canon Arrowverse comic mini-series Earth-Prime #2 revealed that his Jonathan and Martha died in a car accident and he was put in a terrible foster home. After unknowing using his powers on the foster father, Clark fled until he was caught by the government who kept him in their custody until the day he escaped. Clark made his way to the Fortress of Solitude where he met the A.I. of his world's Jor-El. After getting training for his abilities, Clark became Superman and used his powers. After being delusioned that the entire world will still be in danger no matter how many times he averts danger, Superman met Tal-Rho who persuaded him to remake Earth into the new Kryton which led to different attacks with Kryptonian-powered people where he killed his world's Lois Lane and Sam Lane and became an opponent to John Henry Irons. While pursuing him into space where John flew into the energy wave during the Crisis on Infinite Earths, Superman was saved by Magog who offered to pair him up against Earth-Prime's Superman.

Lois Lane

Lois Lane (portrayed by Elizabeth Tulloch; seasons 1-present) is a renowned journalist and Clark's wife.^[2]

In season one, Lois quits her job after Morgan Edge buys the Daily Planet and start working at a local publication Smallville Gazette.

In season two, Lois and Chrissy start to work on expanding their staff. Due to some sources recanting the stories written by Lois, she and Chrissy work to prove them starting with one that Lois was told about by her sister Lucy and her encounter with cult leader Ally Alston. Thanks to Sam, Lois works to speak with Lucy only to end up confronted by Ally Alston who claimed that Lucy sent her in her place. Following Ally Allston's defeat, Lois reveals to Chrissy that Clark is Superman and has a brief chat with Ally and her Bizarro counterpart.

In season three, Lois visits Dr. Irons about what she knows about what this Earth's version of John Henry Irons did that involved Bruno Mannheim. Later on, Dr. Irons asks Lois to come in to do some more tests. Lois later reveals that she has been diagnosed with Stage 3 inflammatory breast cancer.^[3][4]

• Tulloch also portrays a variation of Lois Lane from another Earth where she is married to John Henry Irons. Before being killed by Superman, she gives away the Kryptonite weakness in her news report and tells her family that she loves them.
• Tullock also portrays Lois' Bizarro counterpart whose relationship with Bizarro was strained. She works with Sam and Jordan in a resistance against her world's Ally Allston. Bizarro Lois later watches Allston's broadcast where she plans to merge both worlds.

Jonathan Kent

Jonathan Kent (portrayed by Jordan Elsass; seasons 1–2;^[5] Michael Bishop; season 3–present;^[6] Brady Droulis as a 7-year-old) is the modest and kind-hearted son of Clark and Lois although unlike his twin brother Jordan, Jonathan doesn't seem to have inherited any of Clark's kryptonian powers even though he is a top level athlete by human standards.

In season 1 although Jonathan initially claims that he isn't bothered by the fact that he unfortunately didn't get superpowers like Jordan and even supports his brother on his journey to master his new abilities, he does admit later on that a part of him is actually jealous of his twin brother's new powers since thanks to them Jordan becomes very popular at their new high school and Smallville High's best new football player, but doesn't let his jealousy destroy his relationship with his brother and they both still love each other very much. Jonathan's insecurities comes to ahead later in season 1 after Jonathan and Jordan find out about how Morgan Edge and John Henry Irons are threatening both Smallville and their parent's lives. Jonathan feels powerless and defenseless compared to his father and brother's powers which leads him to take some of Irons' weapons until he returns them in the season 1 finale. He is named after Clark's adoptive father Jonathan Kent.^[7] Jonathan is on the Smallville high school football team called the Smallville Crows, but gets kicked off of the team after he tries to get rid of his girlfriend's illegal drugs and takes the fall for her in season 2.

In season two, Jonathan starts dating Candice Pergande and finds out that she was the one who sold X-Kryptonite crystals to Timmy Ryan, and confronts her about it. Instead of telling on her, Jonathan asks for a crystal, which enhances his strength and vision. After getting caught by Principal Balcomb and the Smallville Sheriff Department trying to dispose of Candice's supply, he was unable to admit to Lois that they were Candice's. After a fight with a crazed Mitch Anderson, Clark returns and is informed of what happened, telling Jonathan to start apologizing to Principal Balcomb, Coach Gaines, and the Smallville Crows. Clark persuades Principal Balcomb to allow Jonathan to do an online education as Jonathan will also be working at Brit and Dunn's. After a fire at a warehouse containing X-Kryptonite, Sam persuades Jonathan to come clean as he advises them to keep the identity of the person private from the press. He calls Candice to the farm as she informs them on what she knows. Jonathan is eventually allowed to start attending school again and although he initially has struggles from being outcasted by his peers following his circumstances after being expelled and meeting Jon-El, going on a small adventure with Jordan and Natalie helps Jonathan overcome this hurdle. Following Ally Allston's defeat, Jonathan and Jordan receive trucks that were delivered to them by "Uncle Tal".

In season three, Jonathan gets his driver's license and celebrates his 16th birthday. While at a party in Metropolis, Jonathan runs into Eliza who regretted breaking up with him. Jonathan lets her down easily when he mentions that he is now with Candice. Jonathan later learns of his mother's diagnosis. After learning about his mom's cancer, Jonathan and Jordan along with Natalie try to encourage her and offer their support by getting a gift watch for her which they leave within Jonathan's new truck while at school, but unfortunately Jon's truck gets stolen while he's in class. Things between Jon and Candice temporarily become icy after Jon accuses her dad of stealing his truck. After locating his truck within a warehouse, Jordan and Natalie help Jonathan get his truck back and he later reconciles with Candice after she reveals that she found confirmation that it was indeed her father who stole Jonathan's truck when she returns the gift watch. Jonathan later confronts Candice's dad Emmett over his illegal activities including his theft of Jonathan's truck which Emmett falsely denies. When Jonathan further insists on Emmett's bad qualities, he's given a black eye by Emmett and is forced to tell his parents what happened after they inquire about what happened. After Clark and Lois confront Emmett, he leaves town with the Kents allowing Candice to live with them. 3 weeks later Candice moves in with her aunt in Topeka with Jonathan agreeing to a long-distance relationship despite working most of the week at Brit and Dunn's and being offered a place within the fire department by Kyle on the weekends.

• Jordan Elsass also portrays Jon-El Jonathan's Bizarro counterpart, who has powers. With his relationship with his father is strained, Jon-El is swayed to the side of his world's Ally Allston. When both versions of Ally Allston start to merge, Jon-El is instructed to merge with his counterpart as Superman goes after him. He appears to inform Lois and Jordan that Superman lost. After attempt to merge with Jonathan failed, Jon-El kidnaps Lana, luring Superman into a Kryptonite-based trap and summons Lana-Rho. When he goes after Jonathan again, Jordan managed to defeat them in mid-air. Jon-El was remanded to DOD custody where Superman tries to get an imprisoned Jon-El to turn against Ally Allston to no avail. Lana-Rho later sprung him from his imprisonment where they attacked a weakened Superman at Smallville High School. They were defeated by Jordan and Natalie.

Jordan Kent

Jordan Kent (portrayed by Alex Garfin; seasons 1-present; Dawson Littman as a 7-year-old) is the introspective son of Clark and Lois. He has social anxiety and enjoys playing video games alone. He has inherited his father's powers, though initially his abilities are only in 'small bursts'; Jordan's powers being much weaker than a full kryptonians and originally had trouble using some of them on command like his heat vision, but did still develop other powers such as super hearing and freeze breath. He is named after Clark's biological father Jor-El.^[7] Jordan later joins Smallville high school football team although he later quits in order to focus on helping his family deal with Tal-Rho.

In season two, Jordan's powers have matured and started to grow at a tremendous rate with him able to now use his abilities much more easily. After Superman begins to have painful visions that debilitate him while in the field, Jordan plans to find a way to help his dad. Sam agrees to secretly train him in order for Jordan to become more adept at using his powers, during which at some point Jordan gains his super speed. Lois finds out that Jordan withheld information on Jonathan taking X-Kryptonite. After Jordan secretly helps save Kyle from a fire by super leaping through a wall that John Henry Irons witnesses, Lois confronted Jordan about it and learned that Sam trained him. She forbade Jordan to follow in his father's footsteps until Lois and Sam were caught outside an X-Kryptonite distribution house. Lois was forced to call for Jordan's help when she realized that without him they would've been killed and witnessed him effortlessly defeat their captors after he gained his ability of accelerated perception and save them thanks to his newfound handle on his powers. When it came to the fight against Ally Allston's followers, he struggled in his fight against Jon-El (who had been sent to merge with Jonathan), but manages to defeat him while in the air when Jordan flies for the first time. After Jon-El's defeat Jordan also gets taught by Clark on how to fly and even learns how to fly in space, but still doesn't know how to land yet. When Lana-Rho springs Jon-El from his imprisonment and they attacked Superman, Jordan and Natalie defeat them. During the fight against Ally Allston, Jordan went to rescue Tal-Rho from being slain by Ally. After Ally is defeated, Jonathan and Jordan receive trucks that were delivered to them by "Uncle Tal".

In season three, Jordan celebrates his 16th birthday while being trained by his father in using his abilities, although Jordan gets scolded by Clark when he attempts solo heroics. Even though Jordan has reconciled with Sarah, she decides to not get back together with him which leaves Jordan feeling awkward about how to be around her, although he decides to respect her choice. Unlike Jonathan, Jordan doesn't try to bother getting his drivers license due to returning his own truck since he could already fly and run at super speed. With Smallville High temporarily closed due to black mold remediations, Jonathan convinces Jordan to fly them to a party in Metropolis in order for Jordan to meet with another girl to try and get over Sarah. After meeting Sarah at the party, they both decide to continue with being just friends and have fun together at the party. The Smallville teens are forced to leave the party early when Sarah and Jordan get into an argument with the party's host Travis, although as payback for Travis' rudeness Jordan uses his super breath to freeze Travis' new SUV birthday gift. Jordan later learns of his mother's diagnosis. To show their support and encouragement to Lois, the Kent twins along with Natalie decide to gift her with a watch that belonged to Natalie's mother. The watch is unfortunately stolen when inside Jonathan's truck while at school the next day, which Jordan and Natalie deduce was taken by Candice's father after Jonathan brings up his interest in his truck the previous night. Locating the truck after school, Jordan uses his powers while Natalie uses her armor to help Jon successfully steal his truck back after which Natalie gives the watch to Lois after its returned by Candice. After helping his dad deal with a forest fire, Jordan gets slightly chewed out over his carelessness after Sam shows him pictures of satellite images which showed Jordan's hair after his hood briefly fell down. Jordan argues with Sam over whether or not he should get his hair cut, but they later reconcile after Sam gives Jordan his own suit to better hide his identity when operating as a superhero. Jordan eventually becomes frustrated after Clark's insistence that he's not ready to be a superhero and being given more and more training tests one after another. After Superman is tricked into an ambush by Intergang, Jordan manages to save his father and is shot with kryptonite in the process. Even though the kryptonite briefly incapacitates him, Jordan discovers that due to being half-human, Kryptonite doesn't seem to affect him the way it does normal Kryptonians, with Clark even speculating that Jordan could have the potential to even surpass him in power. Jordan attends a party where he bumps into Sarah and they eventually have a heated argument. Despite this, after the police raid the party, Jordan rescues Sarah and George Dean Jr. after they end up in a car crash while fleeing from the cops. Jordan later develops X-ray vision during Lois' surgery which he gains control of thanks to help from Jonathan and later uses to save the doctors operating on Lois when Peia's powers cause massive earthquakes and almost causes an explosion that Jordan prevents.

• Alex Garfin also portrays Jordan's Bizarro counterpart who doesn't have powers. He helps his mother and grandfather in a small resistance against his world's Ally Allston. Bizarro Jordan later watches Allston's broadcast where she plans to merge both worlds.

Kyle Cushing

Kyle Cushing (portrayed by Erik Valdez; seasons 1-3^[8]) is Lana's ex-husband and the father of Sarah and Sophie. He is Smallville's fire chief.^[9]

In season two, Kyle supports Lana's campaign to become the next Mayor of Smallville after the original candidate Daniel Hart dropped out. His previous affair with Tonya Martinz was found out by Sarah which partially affects her quinceañera. While Lana forgave him, Kyle was advised to move out. At Aubrey's advice, Sarah visits Kyle outside the liquor store. Kyle later helps Lana rehearse for the debate on family values against Mayor Dean. While fighting a fire at a warehouse that contained X-Kryptonite, Kyle was injured by a fire tornado and was secretly rescued by Jordan. As Ally Allston started to merge Earth-Prime and Bizarro World, Kyle suddenly disappeared. This landed him on Bizarro World where Lois states that what happened recently was not his fault. After Ally was defeated, Kyle and Lana reconciled but Lana told him that although they will always be in each other's lives, things between them could never go back to how they were and that Kyle had to stop holding out hope that they would get back together.

In season three, Kyle and Lana have gotten a divorce and he later finds himself sleeping with Chrissy. He was visited by Lana at the scene of George Dean's murder. After hearing about the argument between Lana and Sarah, Kyle arranged a sit-down at the diner to settle this matter. He is among those who saw Clark deal with Emmit Pergande. While taking Jonathan in as a trainee, he starts to get suspicious when one of the fires he had to put out had ice found inside. Clark is forced to reveal to Kyle that he's Superman when Kyle independently figures out that one of his sons (the wrong one, but still) has powers and won't let the issue go, at the same time that Peia makes her escape from the DOD. After hearing that Chrissy is pregnant and breaking the news to Lana, Kyle later proposes to her before the meteor shower.

Sarah Cortez

Sarah Cushing (portrayed by Inde Navarrette; seasons 1-3^[8]) is Kyle and Lana's oldest daughter.^[10]

In season two, Sarah returned from camp and starts acting awkward around Jordan. She later revealed to him that she kissed a fellow camper named Aubrey for some unknown reason. At the advice of her mother, Sarah and Jordan work out this issue. There was even a mentioning that Sarah had an earlier suicide attempt at some point in her life. During her quinceañera, Sarah and Jordan overheard the discussion between Kyle and Sarah which Lana plans to settle at a later point. Sarah later invites Aubrey to the local diner to talk about the issues with her family right now. Aubrey advises Sarah to talk with her father. When her mom wins the election, Sarah was saddened that Jordan wasn't present when the victory was announced and breaks up with him. Jordan tries to find ways to explain himself to Sarah. At the time when Ally Allston started to merge Earth-Prime and Bizarro World, Sarah witnessed Jordan using his powers on Lana-Rho and later confronted her mom about this. Their argument was interrupted when Sophie informed them that their father disappeared. After Ally was defeated, Sarah learns the truth about Jordan's abilities and that his father Clark Kent is Superman.

In season three, Sarah sports a shoulder-length hairstyle and agrees with Jordan that they should stay separated. After Lana scolds her for sneaking off the Metropolis, they end up in an argument where Lana regrettably slapped Sarah. After hearing about what happened, Kyle arranged a sit-down at the diner to settle this matter. Sarah is among those who see Clark deal with Emmit Pergande. Sarah reconnects with her childhood friend George Dean Jr. and later bonds with him at a drinking party where she brushes Jordan aside when he tries to join in on their conversation. This leads to the 2 having a falling out after an argument. The police later raid the party and while fleeing the scene with George Jr., Sarah almost hits a deer and ends up in a car crash where she almost dies, but she and Jr. are saved by Jordan in the nick of time. Sarah later gets charged with a D.U.I and gets grounded by her parents. Sarah later apologizes to Jordan about their argument, but Jordan refuses to accept her apology after he points out how she's only doing so out of guilt because he rescued her. This leads to Sarah spiraling down into a deep depression after she realizes all of her mistakes, which her parents try to help her out of. Sarah eventually ends up getting a job as a waitress to gain a sense of responsibility as her first step of recovery from her depression and downward spiral.

John Henry Irons

John Henry Irons (portrayed by Wolé Parks; seasons 1-3^[8]) is a mysterious and solo survivor from an unidentified parallel Earth.^[11] Introduced under the alias of "Captain Luthor", this version is from an unidentified alternate Earth that was ravaged by an army of evil Kryptonians, engineered by his Earth's Tal-Rho and led by Superman. Additionally, he was married to his Earth's Lois Lane and had a daughter named Natalie. After Lois exposed the Kryptonians' weakness to Kryptonite on the news, she was killed by Superman. In response, John and Nat built a suit of armor and incorporated an A.I. named Hedy he took from his Earth's Lex Luthor. As he was unable to reprogram its recognition protocols, John was forced to go by "Captain Luthor". At some point prior to his Earth's destruction, John makes his way to Earth-Prime and witnesses its Superman.

Convinced he will inevitably turn evil, John hunts down Earth-Prime Superman. Along the way, he encounters Earth-Prime's Lois, introduces himself as "Marcus Bridgewater", and offers to help her investigate Morgan, leading to them finding X-Kryptonite. After finishing his hammer, John uses Lois to arrange a meeting with Superman and beats him after weakening him with red solar flares. Upon having Lt. Reno Rosetti run the prints on the box he gave them to see if he was related to Lex Luthor, she learned that "Marcus" is a variation of John Henry Irons. Meanwhile, having obtained John's fingerprints to see if he was related to Luthor, Lois deduces John's identity and joins forces with her sons, Jonathan and Jordan, to save Superman while the Department of Defense take John into their custody. While being interrogated by Superman, John briefly reminisces on his past and how he got to Earth-Prime before warning Superman that Earth-Prime will go through what his Earth did. However, Lois convinces John that her Superman is nothing like the ones from his Earth. John later helps Superman in his fight against Tal-Rho. Afterwards, John is surprised by the arrival of Natalie.

In season two, John works to help Natalie adjust to Earth-Prime when they are in Metropolis. When this fails and she has a talk with Natalie, Lois allows them to move in with them. John even helps her in measuring the tremors at the Shuster Mine. He was present when Clark tells Lois about his visions being tied to an "invasive cosmological event". Following a fight with Bizarro, John receives help from Natalie on repairing the armor. When it comes to the next fight with Bizarro, John was beaten up enough to end up in the hospital's ICU. After getting out, Clark was able to have John and Natalie move into a house that was owned by an old friend of his. When Superman entered the Inverse World, John had to cover for him and even joined Natalie in honoring the memory of their Lois. John later found out that Natalie had made her own super-suit and couldn't destroy it due to being coated in a lacquer made from X-Kryptonite. He does allow her to help him when it comes to Superman's fight with Ally Allston in Burnham Woods. After Natalie uses the X-Kryptonite lacquer on his armor, John later fights Ally in the portal between Earth-Prime and Bizarro World only to be knocked unconscious by her powers. Natalie rescued him despite the buggy message to bring X-Kryptonite. Both of them were rescued by Superman before Ally can harm them. After Superman defeated Ally, she and her Bizarro counterpart were handed over to John and Natalie. Sometime later, John was approached by John Diggle who was looking for answers on why this Earth's John Henry Irons was killed by Bruno Mannheim.

In season three, John joins the DOD. He does reprimand Sam Lane when he hears that he tried to get Natalie in joining the DOD's academy. When ex-mayor George Dean confronts Lana on some reallocated funds, John orders George to take his leave. Following Dean's murder, John follows Lana to city hall where they find a drive. Before they can figure out what's on it, Peia Mannheim uses a sound attack on them where she makes off with the drive and destroys the laptop while getting a glimpse of John. He later sets up a perimeter around Lana's house just in case of another attacker. After helping Superman defeat Mike Gunn, John analyzes the gautnlets he used. Comparing them to the rockets on his armor, John finds out that they are similar. After a talk with Clark, John goes to Metropolis and meets this world's version of his sister Dr. Darlene Irons while mentioning that he is not from this Earth. Upon learning about his counterpart from Darlene, John was later visited by Elias Orr who stated that Bruno Mannheim wanted to meet him. When meeting John, Bruno mentioned his awareness of John not being his John, that this Earth's John wanted to be a hero, and the allegations towards Bruno. Wanting to know who smart this John is, Bruno had arranged Darlene to be strapped to a bomb that was made by this Earth's John. Upon locating her and disarming the bomb, John went back to Bruno who stated that he has Intergang members on standby to target his counterpart's other relatives. During the latest visit with Darlene, John learns that the restaurant that Matteo Mannheim took Natalie to meet her parents at was where her John met with Bruno. When John arrived, Bruno had Natalie and Matteo evacuated so that he and his men can deal with John. Upon John summoning his armor, Peia went on the attack even when Superman arrived to help. Following the incident, John had to confiscate Natalie's phone as a precaution.

• Parks' image was also used to portray the John Henry Irons from Superman and Lois' Earth who is mentioned to have been killed in action. The season two finale revealed that this John was killed by Bruno Mannheim during the discussion above. He is also revealed to have a sister named Dr. Irons and was said to have sold some weapons to Bruno Mannheim until he started to have a change of heart. Peia was revealed to have been the one who killed this Earth's John Henry Irons on Bruno Mannheim's orders seven years ago.

Morgan Edge / Tal-Rho

Morgan Edge (portrayed by Adam Rayner; main: season 1; recurring: season 2; Jack Rehbein as a 10-year-old, Ben Cockell as a 19-year-old Tal-Rho) is an intelligent, eloquent and impassioned self-made mogul" and CEO of Edge EnerCorp who has taken an interest in Smallville, raising suspicion from Lois.^[12] In Smallville, Edge's company Edge EnerCorp gains ownership of a mine that contains X-Kryptonite which he plans to use to continue experiments in an attempt to create a superpowered army. His previous experiments resulted in only one non-flawed subject, his assistant Leslie Larr. His work in Smallville brings him into further conflict with Lois Lane and an alternate John Henry Irons, who comes from an Earth where a similar army led by Superman ravaged Metropolis and murdered John's wife, Lois. Edge is later revealed to be a Kryptonian named Tal-Rho, the son of Lara Lor-Van and Zeta-Rho and thus Superman's maternal half-brother.

His escape pod landed in England, where he immediately came into conflict with the local townspeople. He was captured and experimented on before managing to escape, causing him to hate mankind. His goal is to resurrect Krypton on Earth by implanting Kryptonian consciousnesses into human hosts using the X-Kryptonite and the Eradicator. Upon finding Superman's body at the Fortress of Solitude following the defeat of most of the Subjekts, Tal-Rho uses Kryptonian technology to review Superman's memories, discovering his human family. With his family threatened, Superman agrees to accompany Tal-Rho to his hideout where the A.I. of Zeta-Rho instructs Tal-Rho to use the Eradicator on him. After the attempt is thwarted during a fight with John, Tal-Rho is defeated with the Eradicator not being found and is placed in a Kryptonite cell. What nobody knows is that Tal-Rho had somehow become fused with the Eradicator which enables him to overcome the Kryptonite and begin his next plot that involved placing a copy of Zeta-Rho into Jordan. Superman and John were able to defeat Tal-Rho and remove Zeta-Rho from Jordan. Tal-Rho and Leslie are placed in DOD custody.

In season two, Tal-Rho is kept in a special cell that has red solar lights. Superman visited him to see if there were side-effects to the Eradicator conscious due to the painful visions he has. Tal-Rho mentioned that he hasn't experienced them while also claiming that he lost his powers in the solar flare that Irons caused. When the vision happen again following a hostage crisis caused by Phillip Karnowski, Superman gives in to Tal-Rho's deal to make use of his lair as Jordan comes with Superman to keep an eye on Tal-Rho. As Tal-Rho activates the A.I. copy of Lara as she scans Superman, he starts to have the visions again as Jordan learns that Tal-Rho faked losing his powers. After a brief scuffle between Superman and Tal-Rho, Lara tells Superman that his visions are the result of an "invasive cosmological event" and tells Tal-Rho that there might be some good in him. Tal-Rho is later returned to his cell. When Superman ends up locked in Tal-Rho's cell by Anderson, Tal-Rho is tortured so that Superman can get Anderson the location of Bizarro. Thanks to a later tactic from Bizarro, Superman and Tal-Rho escape from their cell as Superman follows Tal-Rho to his fortress. With Lara's A.I. translating, Tal-Rho learned that his Bizarro counterpart was inseparable from Bizarro until Bizarro Tal-Rho's wife tried to kill him. Before Tal-Rho can ask who his wife was, they were attacked by Anderson who was powered with Project 7334 weapons and X-Kryptonite. When Anderson fired a Kryptonite gun at Superman, Tal-Rho jumped in front of him. As Anderson fights Bizarro, Superman had to use his heat vision on the Kryptonite shards and fly Tal-Rho to the sun. Back in his cell, Tal-Rho is informed by Superman that Bizarro is dead and Anderson is at large. Before Superman departs, Tal-Rho has him forward his apology to Jordan. Superman later had Tal-Rho released so that he can help destroy Ally Allston's pendant. Though he had to get Lois' apology first. During this plan in an active volcano, Superman and Tal-Rho were ambushed by Ally Allston. With help from John, Superman and Tal-Rho fended off Ally and destroyed the pendant. Once that was done, Superman found that a weakened Tal-Rho managed to sneak away. Tal-Rho later returned to help Superman regain his powers so that he can defeat Ally Allston. Once Ally was defeated, Tal-Rho used his "Uncle Tal" alias to send Jonathan and Jordan two trucks. Then he went to Bizarro World to start life anew as he starts to learn from a bartender on who his wife was.

• Adam Rayner also portrays Tal-Rho's Bizarro counterpart who was on good terms with Bizarro and was named by a magazine to be an eligible bachelor. In addition, he is married to his world's Lana Lang. Tal-Rho's relationship with his brother was strained due to a disagreement about their world's Ally Allston. He and Lana later accompanied both versions of Ally Allston in claiming the pendant from Superman and Mitch Anderson. After Anderson was killed by Jon-El and both versions of Ally Allston start to merge while sending Jon-El to merge with his counterpart, Tal-Rho blows down Lana and allows Superman to go after Jon-El. While imprisoned for this action, Ally Allston visited Tal-Rho's cell. When he asks to see his wife, Ally states that she won't see him anymore as she drains his lifeforce from his body.

Sam Lane

Sam Lane (portrayed by Dylan Walsh; seasons 1-3^[8]) is Lois Lane's father, Jonathan and Jordan's grandfather, and an Army general who is determined to keep America and the world safe from all threats.^[13] Following the fight against Tal-Rho, Sam tells John Henry Irons that he is planning on retiring from active duty.

In season two, Sam Lane is called to the Kent farm by Lois when Superman starts suffering from visions caused by an "invasive cosmological event". While advising Superman to settle his difference with Mitch Anderson, Sam uses his connections to help get John access to the Shuster Mine and was hesitant to help Lois get through to Lucy. He does come through for her. Sam later scrambles the security footage in the Oyelowo family store after Jordan secretly uses his freezing breath to stop some possible shoplifters. He does agree to train Jordan in secret. Sam later found out that Mitch Anderson has arrested Superman for treason. After Anderson stole Project 7334 weapons and X-Krptonite as well as killing Bizarro, Sam informs Lois and Clark that he has talked General Hardcastle into letting him lead the manhunt for Anderson as it turned out that Sam had recommended him as his successor. After Ally was apprehended, Sam was visited by Lucy who secretly spiked his drink so that she can claim his DOD access card and have Ally travel to meet her counterpart. Lois later learns that Sam was training Jordan at the time an investigation at a burnt-down warehouse containing X-Kryptonite was conducted. After Jonathan comes clean about Candice being associated with the X-Kryptonite distribution and her father being broke, Sam agreed with Jonathan to keep her anonymous. At the location of an X-Kryptonite distribution area, Sam and Lois were captured by a criminal powered by X-Kryptonite causing Lois to allow Jordan to fight them. When Sam and Lois find Lucy with the remaining followers of Ally Allston, he had to briefly handcuff himself to Lucy in order to get Lucy to hear them out. Upon Allston's arrival, she badly weakened Sam in order to draw Superman to her. After Allston got away, Lucy stayed by Sam's side at the DOD's infirmary where he forgave her. After recovering and having a brief trip to Bizarro World, Sam was able to help Lucy relocate to Metropolis following Ally's defeat.

In season three, Sam rejoins the DOD. He tries to get Natalie to enroll in a DOD-sponsored academy which led to him getting reprimanded by John. Sam later apologizes to Natalie during Jonathan and Jordan's birthday party. He starts to get concerned that Jordan's hair would give him away to satellite images which led to an argument between them. Clark and Lois would hear about what happened and advised Jordan to apologize to Sam and take his advice. Sam and General Hardcastle later informed Superman about how Intergang got a hold of his blood samples that was harvested from him when he was recuperating from Ally Allston's attack. To avoid another theft, Superman used his heat vision on the blood samples. After giving Jordan his forgiveness, Sam stated that he found an alternative to avoid Jordan being identified by giving him a special suit and his father's aviation goggles before going fishing. When Sam gets a date with a woman named Gretchen Kelley, he learns too late that she is working for Lex Luthor as she and Otis Grisham abduct him.

• Dylan Walsh also portrays a version of Sam Lane from John Henry Irons' Earth who was killed in conflict against his world's version of Superman.
• Dylan Walsh also portrays Sam Lane' Bizarro counterpart. He was the head of the DEO before his world's version of Ally Allston rose to power and later assisted his Lois and Jordan in a small resistance against Allston. Bizarro Sam later watched Allston's broadcast where she plans to merge both worlds.

Lana Lang

Lana Lang (portrayed by Emmanuelle Chriqui; seasons 1–3;^[8] Milana Hryschenko as a child, Sara Rizk when in grade school, Emma Newton as a teenager) is an old friend of Clark and the loan officer at Smallville Bank.^[14] She is married to Kyle and the mother of Sophie and Sarah. In addition, she is also the cheerleader coach at Smallville High School. Due to what Tal-Rho did in Smallville causing the civilians to blame her and Kyle, Lana becomes appalled when she overhears Mayor George Dean talking negative things about them. Lana and Kyle are later forgiven by the citizens of Smallville following Tal-Rho's defeat.

In season two, Lana becomes the campaign manager of Daniel Hart during the mayoral election against Mayor George Dean. She hits a snag in the campaign when Daniel drops out due to having been offered a job in another town. While looking for another candidate, Kyle tells Lana that his fellow firefighters support the idea that she should run for Mayor of Smallville. Lana agrees with him on that. As she works on her campaign, Lana hears about Sarah's camp experience and gives her some advice to work it out with Jordan. During Sarah's quinceañera, Lana finds out about Sarah overhearing Kyle's discussion with Tonya Martinez which she states will be settled on another day. After getting some information from Tonya, Lana forgives Kyle. Though she advises him to move out for a while. After a talk with Lois, Lana crashes Mayor Dean's latest campaign and persuades those in attendance not to fall for the family affair thing. Lana gets assistance from Kyle on the rehearsal of her "family values" debate against Mayor Dean. On the day of the election, Lana defends Jonathan from Barb Dodge's negative comments and sends those involved in her campaign to obtain some voters. When the results were in, Lana was told by Emily Phan that she has won the election. While moving in her stuff to Smallville City Hall, Lana is abducted by Jon-El and used as bait to lure Superman into a Kryptonite trap. While summoning Bizarro Lana to come to Earth, Jon-El goes after Jonathan as Lana works to remove the Kryptonite shards from Superman. Following Jon-El's defeat and with the support of his family, Clark reveals that he is Superman to Lana. This briefly put a strain on her friendship with Clark and Lois. After being informed about Lana-Rho by Clark and Lois, Lana advises them not to interact with her or her family for a while. At the time when Ally Allston was merging Earth-Prime and Bizarro World, Lana held a town meeting at Smallville High School to tell them the truth. George Dean led the townspeople into not believing her until Superman confirmed her case. While getting Sarah, she got a glimpse at Lana-Rho before Jordan fought her and revealed his powers to Sarah. Sarah later argued with her mother about withholding this information until Sophie informed them that their father disappeared. After Ally Allston was defeated, Lana held a celebration to thank Superman and reconciled with Kyle, but decided in the end not to get back together with him.

In season three, Lana and Kyle have gotten a divorce. Principal Balcomb informs Lana about the mold in the school which Clark confirms to her. When George Dean shows up at Jonathan and Jordan's birthday party to get her to return the funds she reallocated, John Henry Irons came to her defense as George leaves stating that she doesn't know what she is getting herself into. After Dean was found murdered, Lana uses the last lines he said to him prior to his death to head to city hall with John. They find a drive behind a plaque. Before it can be fully uploaded, they are attacked by the hooded figure who uses a sound attack on them as she makes off with the drive and destroys the laptop. John later places a perimeter around Lana's house just in case another attacker comes after her. After Lana gets into an argument with Sarah about her sneaking off to Metropolis, she regrettably slaps her. Kyle hears about what happened and arranges a sit-down at the diner to settle this matter. She was among those who saw Clark deal with Emmit Pergande. Lana later finds out that Chrissy is seeing Kyle at the time when Sofie left Kyle's apartment. After a talk with Sam Lane, Lana finds that Sarah has changed her mind about wanting to go with her to The Cure concert. While dating John, Lana hears from Kyle that Chrissy is pregnant.

• Emmanuelle Chriqui also portrays a Bizarro version of Lana Lang called Lana-Rho who defends Ally Allston from Bizarro. This version was a former waitress before she married her world's version of Tal-Rho and later gained superpowers. She and Tal-Rho accompanied both versions of Ally Allston in reclaiming the pendant from Superman and Anderson. After both versions of Ally start to merge and Jon-El is sent to merge with his counterpart, Lana was blown down by Tal-Rho so that Superman can go after Jon-El. At the time when Jon-El had abducted Lana, he called Bizarro Lana to Earth. She arrived and ended up fighting John Henry Irons and Natalie. Bizarro Lana beat up John before Natalie stabbed her with X-Kryptonite causing Bizarro Lana to fall back to her world. After weakening Superman, Allston begins to merge both worlds while sending Lana-Rho to finish off Superman. She and Jon-El were defeated by Jordan and Natalie Irons.

Chrissy Beppo

Chrissy Beppo (portrayed by Sofia Hasmik;^[15][16] main: seasons 2–3;^[8] recurring: season 1) is a journalist and proprietor of the Smallville Gazette who Lois works with. By the end of season one, Lois buys half of the Smallville Gazette to keep it from being sold to someone else.

In season two, Chrissy looks for recruits for the Smallville Gazette as Lois is displeased with some of her choices. Due to a podcast causing some of Lois' sources to recant the stories she published like the one on cult leader Ally Alston, Chrissy is persuaded by Lois that they have to prove one of them by looking for Lois' sister Lucy. At Ally Allston's event in New Carthage, Chrissy infiltrates it under the alias of Penelope Collins. Ally sees through Chrissy's disguise and plays the live footage of Lois and Lucy's argument which puts a strain on Lois and Chrissy's friendship. After being fed drugged tea by Ally during a talk with her, Chrissy was put through the Inverse Method where she saw her Bizarro counterpart. She later mentioned to Lois about her counterpart being afraid of her father and Ally having supposedly taken over the United States of America on that world. After Ally was defeated, Chrissy learns from Lois that Clark is Superman.

In season three, Chrissy gains Clark as a new employee and finds herself sleeping with Kyle.^[17] Chrissy later tells Kyle that she is pregnant as Lana, Sarah, Sophie, Lois, and Clark are informed. Before the meteor shower, Kyle proposes to Chrissy.

• Sofia Hasmik also portrays Chrissy's Bizarro counterpart. While operating the Smallville Gazette with her staff, Mitch Anderson shows up and arranges for her to silently get a message to Lois for her. Chrissy was able to secretly get the message to her.

Natalie Lane Irons

Natalie Lane Irons (portrayed by Tayler Buck;^[18] main: seasons 2–3;^[8] guest: season 1) is the daughter of the alternate John Henry Irons and Lois Lane from an unidentified parallel Earth. She helped her father to work on his armor when facing the alternate Superman and an army of Kryptonians. When the Crisis hit, Natalie was put under a hibernation by the A.I. Hedy until it can locate the Earth where her father is on. By the end of season one, a vessel carrying Natalie arrives on Earth-Prime. As Natalie reunites with her dad, she sees Lois and mistakes her for her mother.

In season two, Natalie works to adjust to Earth-Prime when operating in Metropolis where she can't interact with Earth-Prime's version of her friends. This became rocky enough that John had to persuade Lois to speak to Natalie. This leads to the Irons family moving in with the Kent family. She later befriends Sarah Cushing and helps her with the car that Sarah and Kyle were working on. While having noticed that her father is still make use of the armor, Natalie agrees to help John in repairing it. On the day when Lana became the new Mayor of Smallville, Natalie started honoring the memory of her mother as John later joins her in it. Natalie later starts working on her version of her father's armor. John later found out about the armor and tried to destroy it to no avail as Hedy reveals that Natalie had coated it in a lacquer made from X-Kryptonite. After her father was defeated by Ally, Natalie rescued him despite the buggy message to bring X-Kryptonite. Both of them were rescued by Superman before Ally can harm them. After Superman defeated Ally, she and her Bizarro counterpart were handed over to John and Natalie.

In season three, Sam invites Natalie to a movie where he also tries to get her to enroll in a DOD-sponsored academy. This didn't go well and Sam was reprimanded by John. During Jonathan and Jordan's birthday party, Sam apologized to Natalie. With Smallville High temporarily closed due to black mold remediation, Natalie is convinced by Sarah to attend a party in Metropolis hosted by the doppelganger of a boy named Travis who Natalie had a crush on in her original world. After getting to the party and learning that Travis already has a girlfriend, Natalie meets and bonds with a boy named Matteo, but is forced to leave the party early before she can get his contact information due to Sarah and Jordan getting into a fight with Travis and his friends. After Lois informs her friends and family of her diagnosis of breast cancer, Natalie convinces the Kent twins to show their support with her by gifting their mother with a watch that belonged to Natalie's version of Lois. While at school, Jonathan's truck gets stolen while the gift watch was placed within the truck, which Natalie and Jordan deduce was stolen by Candice's dad after Jonathan brings up his interest in his truck the former night. After locating the truck, Natalie uses her armor while Jordan uses his powers to help Jon get his truck back and later gives Lois the gift watch after it was returned by Candice. Matteo later invites Natalie on a date where she will meet his parents Bruno Mannheim and Peia Mannheim. The dinner was crashed by John who learned about the restaurant from Darlene causing Bruno to have Natalie and Matteo evacuated. Following Superman and John's fight with Peia which led to her being placed under medical care in the DOD, John had to confiscate Natalie's phone as a precaution.

Bruno Mannheim

Bruno Mannheim (portrayed by Chad L. Coleman;^[19] season 3) is a businessman and the leader of Intergang who has used tactics to avoid arrest. At some point, Boss Moxie would found and lead the first iteration of Intergang in Metropolis. However, he would later be killed by Peia after she turned on him when ordered to kill Bruno Mannheim for disobeying him. This would lead to Mannheim taking over from him as leader of Intergang and the blame of his death would later be placed on Lex Luthor.

He is first seen when he has his scientists experiment on the corpse of Atom Man after his hooded robed minion snatched it after diverting Superman. Bruno Mannheim played a role in freeing Henry Miller and possibly getting him super powers. Superman believes that he was able to manipulate Judge Tara Reagan into letting him go which is later confirmed as Mannheim states that he is the self-proclaimed hope for the people of Suicide Slum. Later that night after getting the status of Henry Miller, Bruno is confronted by the hooded figure who stated that what was used on Henry's corpse isn't working and also informs him about her encounter with someone that looks like John Henry Irons even though Mannheim had the figure kill Irons seven years ago. This led to Bruno arranging a meeting with John and seeing if he was smart as his counterpart by having Darlene Irons strapped to a bomb of his counterpart's making. After the bomb was disarmed, Bruno was confronted by John. Though John departed after Bruno mentioned that he has Intergang operatives on standby to target more of his counterpart's relatives. After Deadline's death, Bruno gets a status report on Dr. Hook's autopsy. His sound-manipulating operative is revealed to be his dying wife Peia. Bruno and Peia are revealed to have a son named Matteo. Bruno later met Natalie when Matteo invited her to dine with his family. The dinner at Bruno's restaurant was crashed by John causing Bruno to have Matteo and Natalie. Bruno and his men beat up John until he summoned his armor causing Peia to go on the attack. Superman showed up to help John as Peia collapses during her sound attacks due to her cancer spreading. Bruno allows Superman to fly Peia to the hospital as Matteo later argues with his dad about what happened. After a DOD search of Mannheim's apartment despite Superman being there first, Mannheim orders Dr. Hook to awaken Atom Man and send him to make John Henry Irons suffer. Following Atom Man's second death, Mannheim takes Matteo to a secret room where the body of Bizarro was being held as he can use what is in him to make a cure for Peia. Both Bruno and Matteo are held at the D.O.D. following Peia's death with Bruno promising to cooperate with the D.O.D. if they can drop all charges they have against Matteo.

Introduced in season one

Introduced in season two

Introduced in season three

Introduced in season one

• Martha Kent (portrayed by Michele Scarabelli) - The adoptive mother of Clark Kent. She later dies of a stroke in the pilot. A bench was later dedicated in memory of her.
• Jonathan Kent Sr. (portrayed by Fred Henderson) - The adoptive father of Clark Kent. He died of a heart attack while Clark was still a teenager.
• Perry White (portrayed by Paul Jarrett) - The editor-in-chief of the Daily Planet before Morgan Edge bought it out.
• Samuel Foswell (portrayed by Dean Marshall) - A minion of Morgan Edge who runs the Daily Planet after it was bought by Edge.
• Dr. Frye (portrayed by Chy Liu) - Martha Kent's doctor who informs Clark about Martha having a stroke.
• Eliza (portrayed by Coral Humphrey in season 1 and Yasmeene Ball in season 3) - Jonathan's girlfriend who he speaks to through a video chat ever since the Kent family relocated to Smallville. She eventually broke up with him.
• David Fuglestad (portrayed by Daniel Cudmore) - A man with super-strength that rivals Superman's super-strength due to having been experimented on with X-Kryptonite by Morgan Edge and Dabney Donovan.^[25] After being defeated by Superman, David was later killed by Leslie Larr on Morgan Edge's orders after he called him up while driving. She later calls up Edge to inform him that her job is done and that she'll arrange for a team to dispose of his body.
• Sharon Powell (portrayed by Jill Teed) - A woman whose son was offered a job by Morgan Edge and later gets targeted by Subjekt-11.
• Derek Powell (portrayed by Clayton James) - A miner and Sharon's son who took a job by Morgan Edge. After being killed in an accident, Derek was revived by Morgan and Leslie using X-Kryptonite that gave him Kryptonian abilities. During the fight with Superman, Derek commits suicide by turning the heat vision on himself.
• Tom Mitchel (portrayed by Rohain Arora) - A firefighter that works for the Smallville Fire Department.
• Thaddeus Killgrave (portrayed by Brendan Fletcher) - A mad scientist and old enemy of Superman who works with Intergang.
• Denise Olowe (portrayed by Kelcey Mawema) - A cheerleader at Smallville High School.
• Dabney Donovan (portrayed by Robel Zere) - A scientist and associate of Morgan Edge who assisted in his experiment with X-Kryptonite and the Eradicator.
• Robbie Alvarez (portrayed by Stephen Adekolu) - A firefighter that works for the Smallville Fire Department.
• Tegan Wickhem (portrayed by Kayla Heller) - A student at Smallville High School who becomes Jonathan's love interest. She and her mother moved to Smallville from Central City after her father was arrested and incarcerated.
• Dr. Wiles (portrayed by Wendy Crewson) - A Department of Defense (DOD) therapist whom Lois sees.
• Jason Trask (portrayed by Spencer Lang) - A lieutenant in the DOD who was supposed to torture John Henry Irons before being killed by Lt. Rosetti.
• Duc Phan (portrayed by Jay Zhang) - The husband of Emily Phan.
• Avery Phan (portrayed by Kenendy Chew) - The daughter of Emily and Duc Phan.
• Ms. Sharp (portrayed by Marika Siewert) - A music teacher at Smallville High School.
• Jasper Townes (portrayed by Shawn Stewart) - A man who undergoes Morgan Edge's X-Kryptonite experiments.
• Ron Troupe (portrayed by Charles Jarman) - A reporter from the Daily Planet during Clark's early days.
• Janet (portrayed by Yoshi Bancroft) - A television producer from the Daily Planet during Clark's early days.
  • Yoshi Bancroft also portrays Janet's Bizarro counterpart.
• Henry Miller / Atom Man (portrayed by Paul Lazenby) - A Neo-Nazi arsonist whom Clark fought in his early days. In season three, Atom Man is shown attacking Metropolis where Superman finds that he has superpowers. Before being supposedly shot and having his corpse snatched away by a mysterious figure, Atom Man mentions that he is dying and some people are after him. Superman would later learn that Atom Man was dying from a tumor. While underground, Bruno Mannheim has his scientist Dr. Aleister Hook and his fellow Intergang scientists inject something into Atom Man's corpse in order to revive him. The life support system that Atom Man is hooked up to starts beeping. Intergang's scientists work to stabilize him. During the latest attempt, Elias Orr forwarded orders to Dr. Hook to pump the blood sample of Superman into him. Following a DOD raid on his apartment, Bruno Mannheim orders Dr. Hook to awaken Atom Man and dispatch him to make John Henry Irons suffer. He does cause trouble for John. Superman arrives to help fight Atom Man who sends Superman flying. Upon summoning his hammer, John kills Atom Man in self-defense much to the dismay of Superman and Sam Lane.
• Dr. Patel (portrayed by Yasmin Abidi) - The doctor who delivered Clark and Lois' sons.
• Zeta-Rho (portrayed by A. C. Peterson) - The father of Tal-Rho and ex-husband of Lara Lor-Van. Like Jor-El, a copy of his consciousness is encoded virtually as an A.I. within Tal-Rho's desert hideout in hologram form.
• John Diggle (portrayed by David Ramsay) - An A.R.G.U.S. operative from Star City. John Diggle arrived in Smallville with some A.R.G.U.S. equipment upon Sam Lane contacting Lyla Michaels. After a talk with Lois, Diggle scolds Sam for plotting to use the A.R.G.U.S. technology to take out Superman due to Tal-Rho planning to subject him to the Eradicator. When he finds out that John Henry Irons is from another Earth, Diggle states to Sam that they will have a talk about this later. Later on, Diggle mentioned to Sam that he left the life of dealing with the deaths of people he knew and encounter characters from other Earths.^[26] A few months later following Ally Allston's defeat, Diggle visits John Henry Irons to find out why Bruno Mannheim killed this Earth's Irons.^[27] Ramsay previously portrayed a different version of Diggle in the Arrowverse.

Introduced in season two

• Daniel Hart (portrayed by Nathan Witte) - A man who runs against Mayor George Dean in the mayoral election. Lana Lang becomes his campaign manager. He drops out of the election when he gets offered a job in another town.
• Jessie Vance (portrayed by Evelyn Gonda) - A teenage girl who is a member of the Supermen of America. She and her unnamed teammate were killed by Bizarro.
• Lara Lor-Van (portrayed by Mariana Klaveno) - The mother of Superman through Jor-El and Tal-Rho through Zeta-Rho. Like Jor-El and Zeta-Rho, a copy of her consciousness is encoded virtually as an A.I. within Tal-Rho's desert hideout in hologram form. While pleased to see her sons and displeased with Zeta-Rho's manipulation of Tal-Rho, Lara scans Superman to find the source of his visions. After Superman's latest vision and his brief fight with Tal-Rho, Lara reveals to Superman that his visions are tied to an "invasive cosmological event" and states to Tal-Rho that there might be some good in him. Her revelation lead to the arrival of Bizarro. In season three, Lara's A.I. is placed in the Kent family's Fortress of Solitude. Clark would later mention to Sam that Lara was informed of Lois' diagnosis and that there's nothing in the Fortress of Solitude that could help her.
  • Mariana Klaveno portrays the Bizarro version of Lara Lor-Van's A.I. who learns the fate of her son from Superman before being turned off by Jon-El.
• Dr. Kit Faulkner (portrayed by Catherine Lough Haggquist) - A geologist working for AmerTek Industries that oversees the mining operation at the Shuster Mine in Smallville. After a monstrous figure was seen in the mines that causes a miner to detonate the tunnel, Faulkner calls up an unknown person about it. At the time when John Henry Irons gets access thanks to Sam Lane's contact, Dr. Faulkner knocks him out when he finds detonated rocks. Kit was later revealed to have connections with Ally Allston and was later killed by Bizarro.
• Phillip Karnowski (portrayed by Shaw Madson) - An arms dealer and drug dealer that got his hands on some X-Kryptonite. While holding a pilot and those with him hostage, Superman arrived to fight as Karnowski breathed in some X-Kryptonite to fight Superman. When Superman started to have the painful visions, Karnowski was defeated by the Supermen of America.
• Chuck Arden' (portrayed by Tony Hargrave) - A resident of Smallville who Lana once sold a small business loan to which didn't turn out to be legit. He brought up Lana's dealings in Smallville during one of her mayoral campaign activities.
• Tonya Martinez (portrayed by Cynthia Mendez) - A bartender at a Smallville bar called Monito's who Kyle once had an affair with. When Kyle took Sarah to Monito's for open mic night, it was mentioned by Kyle that Tonya no longer works there. Though she was able to carry a favor from Kyle to the bar's manager.
• Erin Wu (portrayed by Stephanie Cho) - A U.S. Army member with the rank of First Sergeant who works under Mitch Anderson. She later helps to free Ally Allston from DOD custody and give her the rebuilt armor that Bizarro wore upon his arrival on Earth.
• John Pugh (portrayed by Jim Thorburn) - An attorney that was associated with Ally Allston's family.
• David (portrayed by Matthew Graham) - The uncle of Ally Allston who tried to persuade her not to go down the same path as her father did.
• Maryann Cushing (portrayed by Carmen Aguirre) - The mother of Kyle and the grandmother of Sarah and Sophie who attends Sarah's quinceañera.
• General Hardcastle (portrayed by Patricia Drake) - The superior of Mitch Anderson who reprimands him for the DOD's poor relationship with Superman under his watch. In season three, General Hardcastle and Sam Lane inform Superman about how Intergang got a sample of his blood. It was revealed that some of Superman's blood was harvested while he was recuperating from Ally Allston's attack. To avoid more thefts, Superman uses his heat vision on the blood samples.
• Sandra Vance (portrayed by Laura Drummond) - The mother of Jessie Vance who attended her funeral. She scolded Mitch Anderson for sending her daughter to her death.
• Aubrey (portrayed by Djouliet Amara) - A girl from Clover that Sarah met at camp and had a brief kiss with her. She later came from upon being called by Sarah to talk about what is going on with her parents. As the daughter of divorced parents, Aubrey advised Sarah to talk to her father. Before heading back to Clover, Aubrey and Sarah agreed to remain friends.
• Balcomb (portrayed by Lossen Chambers) - The principal of Smallville High School. In season three, Principal Balcomb informs Lana about the mold in Smallville High School.
• Mickey Jeroux (portrayed by Kenny Wood-Schatz) - A townie who is a rival X-Kryptonite dealer of Candice.
• Rahim Olowe (portrayed by Broadus Mattison) - The father of Denise and proprietor of Brit and Dunn's.
• Barb Dodge (portrayed by Nancy Kerr) - A citizen of Smallville. She blamed Jonathan for getting football at Smallville High School cancelled until Lana gets her to back off.
• Beau Besser (portrayed by Hilda Martin) -
• Meghan (portrayed by Madeleine Kelders) - A follower of Ally Allston who leaves her group upon getting tired of waiting for Ally Allston to return from Bizarro World.

Introduced in season three

• Dr. Darlene Irons (portrayed by Angel Parker) - A physician in Metropolis who is the sister of this Earth's John Henry Irons. She tells Lois about her brother selling weapons to Bruno Mannheim and later has Lois come in for some additional tests. Darlene would later meet her brother's counterpart and mention what she knows about her John. To see if John was as smart as his counterpart, Bruno Mannheim had Darlene strapped to a bomb of John's making in a van. John was able to disarm the bomb.
• Tara Reagan (portrayed by Karen Holness) - A judge who was pressured by Intergang into having Atom-Man released. As the judge responsible for the sentencing of Lex Luthor, she was later killed offscreen on Luthor's orders.
• Travis Michaels (portrayed by Zachary Loewen) - A teenager at Metropolis High School.
• Emmit Pergande (portrayed by Adrian Lynn McMorran) - The father of Candice Pergande who causes problems for Jonathan. After hearing of Lois's encounter with Emmit regarding the punching he did to Johnathan, Clark confronted him at the diner and intimidated him into leaving his family alone. Clark would later learn from his super-hearing that Emmit has left town.
• Mike Gunn (portrayed by Arpad Balogh) - A member of Intergang who oversaw the clearing out of one of the abandoned buildings that Lois and Chrissy snuck into. When he found Lois and Chrissy in the freezer where different blood samples are, Lois took the opportunity to signal Superman to her location. After knocking down some Intergang members, Superman fought Mike Gunn who wielded gauntlets that became two Kryptonite hand cannons against him. John Henry Irons saved Superman by destroying the guns. After getting knocked down, Mike Gunn set off the explosives taking the building down with him. John would later find that the gauntlets were the same as the technology of both him and his counterpart.
• George Dean Jr. (portrayed by Dylan Leonard) - The son of George Dean.
• James DiStefano / Deadline (portrayed by Jason Beaudoin) - A terminally ill ex-con who Bruno Mannheim arranged to be freed and has gone through the same procedure as Atom-Man. Equipped with a special phasing suit, James became Deadline and raided a DOD headquarters to get to its console. Despite his suit being damaged by Superman enough to trap in a wall, the device he used uploaded information to Intergang on their DOD headquarters which led to Intergang stealing a lot of stuff from there. He later succumbs to his lymphoma.
• Boss Moxie (portrayed by Artine Tony Brown) - The founder and previous leader of Intergang who Bruno worked for. While it was said that he was killed by Lex Luthor, what really happened is that Bruno turned on him when Moxie declined his proposition leading to Peia killing Moxie and those loyal to him before Moxie can have Bruno killed.
• Kerry Wexler (portrayed by Christine Willes) - The governor of Kansas.
• Lex Luthor (portrayed by Michael Cudlitz) - The CEO of LexCorp who secretly is behind different illegal activities. Peia Mannheim framed him for the death of Boss Moxie which landed him with life at Stryker's Prison as his family life is strained. After having been beaten by Otis Grisham and his fellow inmates when Otis wouldn't give him the electric razor that he would use to shave his head, Lex Luthor uses his outside contacts to intimidate Warden Ellis into working for him as Lex has the guards beat up Otis and those who beat Lex up. After Warden Ellis procured him a razor, Lex shaved his head. Following the death of Peia and her frame-up getting exposed, Lex was released from Stryker's Prison with Warden Ellis delaying the news. Luthor proceeded to walk all the way to the Kent family farm where he advised Lois to retired. Upon being picked up by Otis, Lex advises Lois to tell Superman that he'll be coming for him next. Otis informs him that Dr. Aleister Hook has been dealt with as he is given Dr. Hook's bloody glasses. They find Bizarro feeding off rats as Bizarro bites off Otis's right ear in front of Lex. He assists Lex in his death experiments on Bizarro. Then Otis assists Gretchen Kelley in abducting Sam Lane.
• Otis Grisham (portrayed by Ryan Booth) - An inmate at Stryker's Prison. When Lex Luthor was sentenced to Stryker's Prison, Lex tries to borrow the razor that Otis was using on an inmate only to get beaten up by Otis and his fellow inmates. Upon Lex getting Warden Ellis to cooperate with him, Otis and those involved in the beating were beaten up by the prison guards. Sometime later, Otis is released from prison. After picking up Lex at the Kent family farm, Otis presents him with Dr. Aleister Hook's bloody glasses as proof that he was taken care of. They find the location where Bizarro is. Upon them finding Bizarro eating rats, Otis is attacked by Bizarro who bites off his right ear. He has it reattached as Otis assists Lex Luthor in his death experiments on Bizarro. Otis later assists Gretchen Kelley in abducting Sam Lane.
• William Ellis (portrayed by Dean Redman) - The prison warden of Stryker's Prison. In order to get control of the inmates, Lex Luthor used his outside contacts in order to blackmail Warden Ellis by threatening his family. Warden Ellis complied with Lex's demands and arranged for Otis Grisham and those that beat up Lex Luthor to be beaten up. He also procured Lex a razor so that he can shave his head. Following Peia Mannheim's death and her frame-up of Lex being exposed, Warden Ellis saw Lex off when he was released and delayed the news of it to the press.
• Gretchen Kelley (portrayed by Rebecca Staab) - An older woman who dates Sam Lane. What he didn't know until too late that she is actually working for Lex Luthor as she tases him as part of Otis Grisham's plan to abduct Sam.