ER is an American drama series that aired on NBC from September 19, 1994, until April 2, 2009. The series featured a large ensemble cast that changed dramatically over its long run. The main cast was augmented by a wealth of recurring characters and award-winning guest stars.

Main cast

The original starring cast consisted of Anthony Edwards as Dr. Mark Greene, George Clooney as Dr. Douglas "Doug" Ross, Sherry Stringfield as Dr. Susan Lewis, Noah Wyle as medical student (later Dr.) John Carter, and Eriq La Salle as Dr. Peter Benton. Julianna Margulies guest starred in the pilot as Nurse Carol Hathaway before becoming part of the regular cast.

The first additions to the main cast came in Season 2 with Gloria Reuben signing on as Physician Assistant Jeanie Boulet (recurring character in Season 1), and in Season 3 with Laura Innes as Dr. Kerry Weaver (recurring character in Season 2). In Season 4, Maria Bello signed on as Dr. Anna Del Amico (recurring character at the end of Season 3) and Alex Kingston joined the cast as Dr. Elizabeth Corday. Season 5 saw the addition of Kellie Martin as medical student Lucy Knight.

George Clooney's departure towards the end of Season 5 started a major cycle of main cast changes over the next few years. Season 6 opened with the addition of Paul McCrane as Dr. Robert "Rocket" Romano (recurring character in both Seasons 4 and 5), Croatian actor Goran Visnjic as Dr. Luka Kovač, and Michael Michele as Dr. Cleo Finch. A bit later in the season Erik Palladino joined as Dr. Dave Malucci, and Ming-Na returned to the series as Dr. Jing-Mei "Deb" Chen, reprising a recurring character she portrayed in Season 1. Soon after, Maura Tierney was added as Nurse (later Dr.) Abigail "Abby" Lockhart. Season 8 saw the arrival of Sharif Atkins as medical student (later Dr.) Michael Gallant, as well as the return of Dr. Susan Lewis when Sherry Stringfield reprised her role after having left the series in Season 3.

Mekhi Phifer joined the cast in Season 9 as Dr. Gregory "Greg" Pratt (recurring character at the end of Season 8). Season 10 saw the addition of Parminder Nagra as medical student (later Dr.) Neela Rasgotra and Linda Cardellini as Samantha "Sam" Taggart. Shane West joined the cast in Season 11 as Ray Barnett and Scott Grimes became part of the main cast in Season 12 as Dr. Archie Morris (recurring character in Seasons 10 and 11). Season 13 saw the addition of John Stamos as Dr. Tony Gates, reprising a role he had originated in Season 12 when he portrayed Gates the paramedic/medical student. Season 15 saw the final additions to the main cast, with David Lyons signing on as Dr. Simon Brenner (recurring character towards the end of Season 14) and Angela Bassett as Dr. Catherine "Cate" Banfield.

Notably, of the 26 main cast members that starred throughout ER's 15-season run, only seven were not featured in the final season: Gloria Reuben, Maria Bello, Kellie Martin, Michael Michele, Erik Palladino, Ming-Na, and Sharif Atkins. In addition, only four main cast members never made a return appearance of any type following their original stint: Maria Bello, Kellie Martin, Erik Palladino, and Mekhi Phifer.

Main characters

Actor Character Seasons
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Anthony Edwards Mark Greene M S [lower-alpha 1]
George Clooney Doug Ross M S.G S [lower-alpha 1]
Sherry Stringfield Susan Lewis M M S [lower-alpha 1]
Noah Wyle John Carter M R S [lower-alpha 1]
Julianna Margulies Carol Hathaway M S [lower-alpha 1]
Eriq La Salle Peter Benton M S [lower-alpha 1]
Gloria Reuben Jeanie Boulet R M S.G
Laura Innes Kerry Weaver R M S [lower-alpha 1]
Maria Bello Anna Del Amico R M
Alex Kingston Elizabeth Corday M S [lower-alpha 1]
Kellie Martin Lucy Knight M
Paul McCrane Robert Romano R M S.G
Goran Visnjic Luka Kovač M R S.G
Michael Michele Cleo Finch M
Erik Palladino Dave Malucci M
Ming-Na Wen Jing-Mei "Deb" Chen R M
Maura Tierney Abby Lockhart M
Sharif Atkins Michael Gallant M S.G R
Mekhi Phifer Greg Pratt R M S.G
Parminder Nagra Neela Rasgotra M
Linda Cardellini Sam Taggart M
Shane West Ray Barnett M R
Scott Grimes Archie Morris R M
John Stamos Tony Gates G M
David Lyons Simon Brenner R M
Angela Bassett Catherine Banfield M
    1. 1 2 3 4 5 6 7 8 The actor was credited along with the main cast members in the episodes they appeared in.

      Timeline of County General Staff

      Departures from the main cast

      Sherry Stringfield's first departure from the show was in 1996, when her character, Susan Lewis, moved to Phoenix, Arizona, in the Season 3 episode "Union Station." In 2001, Stringfield returned to the series, reprising her role of Dr. Lewis, in the Season 8 episode "Never Say Never." She departed again after the Season 12 premiere, "Canon City." This departure was not depicted, but was mentioned by character Kerry Weaver two episodes later, in "Man With No Name", as not coming in due to interviewing for a tenured position, having been denied tenure at County, and again later in "Wake Up," when Weaver explains that Susan accepted a tenure-track position at a hospital in Iowa City, Iowa. Stringfield returned once again for the series finale.

      After playing Anna Del Amico for one season, Maria Bello was not part of the ensemble cast when Season 5 began. Like Susan Lewis's second exit, her character's departure was mentioned but not depicted: in the season premiere, "Day for Knight," Carter explains to new medical student Lucy Knight that the locker she is inheriting previously belonged to Anna Del Amico, who is working in a pediatric ER in Philadelphia, where she has family and a boyfriend.

      George Clooney left the show in the Season 5 episode "The Storm, Part 2," when his character, Doug Ross, quit before being fired for his involvement in a patient's death. Clooney made a cameo appearance in the Season 6 episode "Such Sweet Sorrow" when his character reunited with Carol Hathaway and appeared in the Season 15 episode "Old Times" where his character was the attending physician caring for a terminal organ donor.

      Gloria Reuben departed early in Season 6, in the episode "The Peace of Wild Things," when her character, Jeanie Boulet, decided to become a stay-at-home mom and care for her newly adopted HIV-positive baby. Reuben returned with her child in the Season 14 episode "Status Quo".

      Kellie Martin, who played medical student Lucy Knight, left the series midway through Season 6 in the episode "All In The Family," when her character was killed by a patient with undiagnosed schizophrenia; his psychotic break occurred before a backed-up psychiatry department could arrive in the ER for a consult.

      Julianna Margulies left the show at the end of Season 6, in the episode "Such Sweet Sorrow," when her character, Carol Hathaway, decided on the spur of the moment to go to Seattle, Washington, and reunite with Doug Ross, her true love and the father of her twin daughters. Margulies returned in the Season 15 episode "Old Times," with her character coordinating transplant efforts from a single organ donor.

      Erik Palladino departed early in Season 8, in the episode "Never Say Never," after his character, Dave Malucci, was fired for inappropriate conduct.

      Eriq La Salle's character, Peter Benton, departed in the Season 8 episode "I'll Be Home For Christmas." He took a job with a set schedule at another hospital in order to spend more time with his son, Reese, and his girlfriend, former fellow ER doctor Cleo Finch. La Salle returned for two more episodes in Season 8 and then again for two episodes in Season 15, including the series finale.

      Michael Michele's character, Cleo Finch, departed in the Season 8 episode "I'll Be Home For Christmas" with her boyfriend, and fellow doctor, Peter Benton, after having previously taken a job at the same hospital (in fact it was she who arranged the interview which resulted in Benton's job offer). Michele made a cameo appearance in the Season 8 episode "On the Beach" at Mark Greene's funeral.

      Anthony Edwards's character, Mark Greene, died of a brain tumor in Season 8's penultimate episode, "On the Beach." Unusually, Anthony Edwards was credited in the following episode "Lockdown." Edwards returned in the Season 15 episode "Heal Thyself" where he appeared in multiple flashback scenes to give insight into the past of Angela Bassett's character.[1]

      Paul McCrane's character, Robert Romano, whose arm had been severed just above the elbow by a helicopter's tail rotor in the Season 9 premiere "Chaos Theory," died in the Season 10 episode "Freefall." A helicopter that was taking off from the hospital roof was buffeted by strong winds, causing it to crash on the roof and plummet over the side of the building; it fell into a crowded ambulance bay and landed squarely on Romano. McCrane returned in the Season 15 episode "Heal Thyself" in a cameo during flashbacks.

      Sharif Atkins left the series in the Season 10 episode "Where There's Smoke," when his character, Michael Gallant, revealed that the Army was sending him to Iraq. Atkins returned for two episodes during Season 11 where he is seen serving duty in Iraq and then for four episodes during Season 12 when he marries Neela Rasgotra and then returns to Iraq where he is killed by an improvised explosive device while serving a second tour.

      Alex Kingston's character, Elizabeth Corday, departed early in Season 11 in the episode "Fear" after getting in trouble for performing an illegal organ donation procedure; rather than being summarily fired, County offered her a demotion to a non-tenured position, but she turned it down and opted to return to England instead. In an interview with Britain's Radio Times magazine, Kingston spoke of being written off the show due to her age, a statement that sparked some controversy. She later withdrew that claim.[2] Kingston returned for two episodes in Season 15, including the series finale.[3]

      Ming-Na departed midway through Season 11 in the episode "Twas The Night" when her character, Jing-Mei Chen, resigned in order to take care of her ailing father, whom she later euthanized. This was the second time her character left County General: in Season 1, medical student "Deb" Chen appeared in an eight episode story arc which concluded with her leaving medical school after accidentally leaving a guide wire in a patient's chest, deciding she was better suited to research than to applied medicine.

      Noah Wyle left in the Season 11 finale, "The Show Must Go On." His character, John Carter, having received tenure at County, decided to reunite with his girlfriend Kem Likasu (portrayed by Thandiwe Newton). Wyle returned for four episodes during Season 12 where he is seen practicing medicine in Darfur and then for five episodes during Season 15 when he needs a kidney transplant.

      Laura Innes left midway through Season 13 in the episode "A House Divided," when a reluctant Luka Kovač was forced by budget cuts to fire her character, Kerry Weaver. After bracing for a battle to keep her position, and in spite of the fact that Kovač realized he must find a way to keep her on staff, Weaver ultimately decided to resign from County and accept a job offer from a television station in Miami, Florida. Innes returned for two episodes in Season 15, including the series finale.

      Shane West left in the Season 13 finale, "The Honeymoon is Over," after his character, Ray Barnett got hit by a truck, lost both his legs and returned to Baton Rouge with his mother to recuperate. West returned for three episodes during Season 15 when his character reunited with Neela Rasgotra.

      Goran Visnjic, who played the character of Luka Kovač, departed in the season finale of Season 13 when he left for Croatia to care for his ailing father. He returned for seven episodes in Season 14 to wrap up his medical storyline and then made a brief appearance in Season 15's "Book of Abby" where he, Abby, and their son Joe embark on their new life together.

      Mekhi Phifer departed in the Season 15 premiere when his character, Gregory Pratt, died in the ER as the result of blast injuries suffered in an ambulance explosion in the Season 14 finale.

      Maura Tierney, who played the character of Abby Lockhart, departed early in Season 15 in the episode "Book of Abby" with her TV husband Luka Kovač. Along with their son Joe, they presumably headed to Boston, where Abby had accepted a new job. She attempted to leave the ER quietly, however the rest of the staff made it known how much they would miss her. Nurse Haleh Adams showed Abby a hidden wall with the locker labels of all the past staff members since season one, with the exceptions of Carter (who refused to deface government property) and Boulet (who took hers as a memento when she departed in Season 6). Other names on the wall include departed former characters as well as some prominent writers and producers. Abby then left the ER and met Luka and her son Joe outside to embark on their new life together. Tierney returned in the Season 15 episode "Shifting Equilibrium" in a cameo during a phone conversation with Neela Rasgotra.

      Supporting cast

      Desk clerks and other non-medical hospital staff

      Actor/Actress Character Name Character Position Years of Appearance
      Reiko Aylesworth Julia Dupree Hospital Chaplain 2007–2008
      Abraham Benrubi Jerry Markovic Desk Clerk 1994–1999; 2002–2006; 2008–2009
      Jesse Borrego Javier Desk Clerk 2007–2008
      Andrew Bowen Andrew "Andy" Desk Clerk Temp 1999–2000
      Akosua Busia Kobe "Kubby" Ekabo Hospital cafeteria worker and wife of Mobalage 1999
      Jordan Calloway K.J. Thibeaux Volunteer 2005–2006
      Julie Delpy Nicole Runner for Central Supplies and Luka's girlfriend 2001
      Troy Evans Frank Martin Desk Clerk 1994; 2000-2009
      Małgorzata Gebel Bogdana "Bob" Liwecki ER Aide/Desk Clerk; Former Vascular Surgeon in Poland 1994–1995
      Robert Gossett Dr Everett Daniels Hospital Board Member 2008
      Mariska Hargitay Cynthia Hooper Desk Clerk, also Mark Greene's lover 1997–1998
      Djimon Hounsou Mobalage Ekabo Custodian 1999
      Brent Jennings Nat Custodian 1997-2000
      David Joyner Dialysis Technician 2004–2006
      Kristin Minter Miranda "Randi" Fronczak Desk Clerk 1995–2003
      Rolando Molina Rolando Desk Clerk 1995–1996
      Charles Noland E Ray Bozman Desk Clerk/Trainee Nurse 1995–1997
      Glenn Plummer Timmy Rawlins Desk Clerk 1994–1995, 2006–2007
      Moira Price Liza Surgical Night Clerk 2005
      Pamela Sinha Amira Desk Clerk 1999–2001, 2003–2005
      Lisa Zane Diane Leeds Risk Management Administrator & Doug Ross's girlfriend 1995

      Family members and friends

      Key
      Symbol Meaning
      ‡ Another actor subsequently took over the role
      † Another actor previously held the role
      Actor/Actress Character Name Character Position Years of Appearance
      Khandi Alexander Jackie Robbins Sister to Peter Benton 1995–2001
      Bonnie Bartlett Ruth Greene Mother of Mark Greene. Died early in Season 6. 1997–1998
      Michael Beach † Al Boulet Husband of Jeanie Boulet. Contracted HIV from adulterous sex, unwittingly passed it on to Jeanie. Died offscreen of AIDS in 2008. 1995–1997
      Wolfgang Bodison ‡ Al Boulet Husband of Jeanie Boulet 1995
      Julie Bowen Roxanne Please Girlfriend of John Carter 1998–1999
      Lisa Nicole Carson Carla Reece Girlfriend of Peter Benton and mother of his child. Died in a car accident in 2001. 1996–2001
      Kieu Chinh Lin Chen Mother of Jing-Mei Chen. Died in a car crash in China. 2003
      George Kee Cheung ‡ Dr. Chen. Father of Jing-Mei Chen 2003–2004
      John Cullum David Greene Father of Mark Greene 1997–2000
      Steven Culp Dave Spencer Boyfriend of Elizabeth Corday 2004
      Vondie Curtis-Hall † Roger McGrath Husband of Carla Reece 2001
      Oliver Davis ‡ Alex Taggart Son of Samantha Taggart 2003–2005
      Rebecca De Mornay Elaine Nichols Ex-wife of John Carter's cousin 1999
      Garret Dillahunt †
      Paul Dooley Henry Lewis Father of Susan Lewis. Supported Susan with her custody of her niece, unlike his wife. 1995–1996; 2004
      James Farentino Ray Ross Father of Doug Ross 1996
      Sally Field Maggie Wyczenski Mother of Abby Lockhart. Her uncontrolled bipolar disorder had a negative impact on her ability to parent Abby and her younger brother, Eric. 2000–2006
      Frances Fisher Helen Kingsley Biological mother of Kerry Weaver. Could not accept Kerry's lesbian orientation. 2005
      Paul Freeman Dr Charles Corday Father of Elizabeth Corday 1998, 2001–2002
      Danny Glover Charlie Pratt Father of Greg Pratt. Long-lost presence, Pratt ultimately decides against a father-son relationship. 2005
      Rose Gregorio † Helen Hathaway Mother of Carol Hathaway 1996–1999
      Michael Gross John "Jack" Carter Jr. Father of John Carter. Cowardly and not respected by his son or his mother. 2001–2004
      Estelle Harris Mrs. Markovic Mother of Jerry Markovic 2006
      Christine Harnos Jennifer "Jenn" Greene Wife of Mark Greene. Divorced in 1996 and remarried, becoming Jennifer Simon. 1994–1998, 2001–2002
      Cole Hauser ‡ Steve Curtis Ex-boyfriend of Samantha Taggart, father of Alex Taggert 2004
      Rebecca Jane Hazlewood Jaspreet Cousin of Neela Rasgotra 2008
      Marg Helgenberger Karen Hines Girlfriend of Doug Ross and his father's boss. Prescription drug addict. 1996
      Hallee Hirsh † Rachel Greene Daughter of Mark Greene 2001–2002; 2004; 2009
      Ernie Hudson Colonel James Gallant Father of Michael Gallant 2006
      Michelle Hurd Courtney Brown Girlfriend of Kerry Weaver 2006–2007
      Dominic Janes † Alex Taggart Son of Samantha Taggart 2005–2009
      Stacy Keach Mike Gates Father of Tony Gates. Alcoholic who caused a young trainee's death while working as a firefighter. 2007
      Chloe Greenfield Sarah Riley Adoptive daughter of Tony Gates 2006–2009
      Anupam Kher Ajay Rasgotra Father of Neela Rasgotra 2004
      Kiron Kher Mrs. Rasgotra Mother of Neela Rasgotra 2004
      Nancy Kwan Lin Chen Mother of Jing-Mei Chen 2000
      Piper Laurie Sarah Ross Mother of Doug Ross 1995–1996
      Amy Madigan Mary Taggart Mother of Samantha Taggart 2009
      Rosalee Mayeux Jacey Barnett Mother of Ray Barnett 2007
      Mary McDonnell Eleanor Carter (née Ferguson) Mother of John Carter 2001
      Andrew McFarlane Jesse Robbins Nephew of Peter Benton 2000
      Trevor Morgan Scott Anspaugh Son of Donald Anspaugh 1998
      Thandiwe Newton Makemba "Kem" Likasu-Carter Girlfriend and later wife of John Carter. Met Carter on a medical relief mission in the Congo. Their unborn son died in utero, which Kem found hard to handle. John fought for her though&they return married in series finale. 2003–2005; 2009
      Bruce Nozick Craig Simon Second husband of Jennifer Greene 1995–1996
      Henry O † Dr. Chen Father of Jing-Mei Chen. Euthanized by Chen in 2004. 2004
      Judy Parfitt Isabelle Corday Mother of Elizabeth Corday 2000–2002
      Andrea Parker Linda Farrell Girlfriend of Doug Ross 1994–1995
      Valerie Perrine Cookie Lewis Mother of Susan Lewis 1995
      Zoran Radanovich Niko Kovač Brother of Luka Kovač 2007
      Sheryl Lee Ralph Gloria Gallant Mother of Michael Gallant 2006
      Beah Richards Mae Benton Mother of Peter Benton 1994–1995
      Ving Rhames Walter Robbins Brother-in-law to Peter Benton 1994–1996
      Jonathan Scarfe Chase Carter Cousin of John Carter 1997–1998, 2001
      Tom Everett Scott Eric Wyczenski Brother of Abby Lockhart 2002–2003
      Lois Smith Gracie Grandmother of Samantha Taggart 2007
      Frances Sternhagen Millicent "Gamma" Carter Grandmother of John Carter 1997–2003
      Georgiana Tarjan ‡ Helen Hathaway Mother of Carol Hathaway 1994–1995
      Marcello Thedford Leon Pratt Brother of Greg Pratt 2002–2003
      Mark Valley Richard Lockhart Ex-husband of Abby Lockhart 2000–2003
      Renée Victor Florina Lopez Mother-in-law of Kerry Weaver 2004
      Gwynyth Walsh Barbara Knight Mother of Lucy Knight 2000
      Fred Ward Eddie Wyczenski Father of Abby Lockhart 2006–2007
      Matthew Watkins Reese Benton Son of Peter Benton 1999–2001; 2009
      Kathleen Wilhoite Chloe Lewis Sister of Susan Lewis 1994–1996; 2002
      Victor Williams ‡ Roger McGrath Husband of Carla Reece 1998–2001
      Shannon Woodward Kelly Taggart Sister of Samantha Taggart 2009
      Yvonne Zima ‡ Rachel Greene Daughter of Mark Greene 1994–2000
      Actress uncredited Victoria Dubenko Sister of Lucien Dubenko 2006

      Fire fighters, paramedics, police officers, and social workers

      Actor/Actress Character Name Character Position Years of Appearance
      Mädchen Amick Wendall Meade Social Worker 2004–2005
      Christopher Amitrano Officer Hollis Police Officer 2006–2009
      Michelle Bonilla Christine Harms Paramedic 1999—2009
      Scott Michael Campbell Reilly Brown EMT 1996
      Claudine Claudio Silva Paramedic 2000–2001
      Brendan Patrick Connor Reidy Paramedic 2006–2008
      Elliot Durant III Anders Paramedic 2004, 2009
      George Eads Greg Powell Paramedic 1997–1998
      Ron Eldard Ray "Shep" Shepard Paramedic and Carol's boyfriend in Season 2. 1995–1996
      Julie Ann Emery Nikki Paramedic 2001–2003
      Mike Genovese Al Grabarsky Police Officer 1995–1996, 1998–2000
      Erica Gimpel Adele Newman Social Services Liaison 1997–2003
      Carlos Gómez Raul Melendez Paramedic 1995–1996
      Lynn A. Henderson Pamela Olbes Paramedic 1995–2009
      Tara Karsian Liz Dade Social Worker 2005–2006, 2007, 2008–2009
      Daniel Dae Kim Ken Sung Social Worker 2003–2004
      Ed Lauter Dannaker Fire Captain 1998–2002
      Brian Lester Brian Dumar Paramedic 1996—2009
      Louie Liberti Tony Bardelli Paramedic 2003—2009
      Joe Manganiello Officer Litchman Police Officer 2007
      Chad McKnight Officer Wilson Police Officer 1995, 1996, 1999–2000, 2001–2004, 2006
      Michele Morgan Allison Beaumont Paramedic and Dr. Corday's patient 1997—1998
      Demetrius Navarro Morales Paramedic 1998—2009
      Bobby Nish Danny Yau Police officer 2005–2006
      Vyto Ruginis Wright Paramedic 2006—2007
      Monté Russell Dwight Zadro Paramedic 1995—2009
      Lisa Vidal CFD Lt. Sandy Lopez Firefighter, later married Kerry Weaver and had their child through AI. Died in an on duty accident 2001–2004
      Emily Wagner Doris Pickman Paramedic 1994—2009
      Cress Williams Reggie Moore Police officer and boyfriend/husband of Jeanie Boulet 1998–2000; 2008

      Notable patients

      Actor/Actress Character Name Character Position Years of Appearance
      Paul Benjamin Al Irving Junk Dealer, Greene's patient 1994, 2002
      Red Buttons Jules "Ruby" Rubadoux Carter's patient. 1995, 2005
      Rosemary Clooney Mary Cavanaugh a.k.a. "Madam X" Alzheimer's disease patient 1994
      Joanna Gleason Iris Allergy patient, Infomercial Director, and briefly Mark Greene's romantic interest 1996
      Dan Hedaya Herb Spivak Lawyer and patient. Helped Mark fend off a civil lawsuit, later returned having lost all his money in a dot-com bust. 1997, 2005
      David Krumholtz Paul Sobricki Schizophrenic patient who in a psychotic break stabbed both John Carter and Lucy Knight, the wounds leaving Carter injured and with life-long kidney problems and eventually resulted in Lucy's death. 2000, 2002
      Mary Mara Loretta Sweet Originally a prostitute; later Secretary/Cancer patient 1995–1996
      Josh Radnor Keith Alderman Bright's lover who contracted Syphilis and was treated under the table by Kerry Weaver. 2003
      Kevin Michael Richardson Patrick 1994
      Sam Vlahos Pablo Homeless man and frequent patient in ER 1997–1998; 2000–2003
      Bruce Weitz Alderman John Bright Alderman for City of Chicago and patient of Kerry Weaver for Syphilis 2003
      James Woods Dr. Nate Lennox ALS (Lou Gehrig's disease) patient, Abby Lockheart's teacher in medical school 2006

      Others

      Actor/Actress Character Name Character Position Years of Appearance
      Jake Lloyd Jimmy Sweet Son of the patient Loretta Sweet 1996
      Joe Torry Chris Law Sues Mark Greene after his brother dies; a suspect in Greene's beating but is not responsible. He and Mark have a heated conversation in which both men admit they're not the reason for the other's misery. 1997
      Bradley Whitford Sean O'Brien Husband of a pregnant patient in Mark Greene's care 1995
      James Belushi Dan Harris Father who was brought in after a car accident with his son 2001
      Jared Padalecki Paul Harris Son who was brought in after a car accident with his father 2001
      Shiri Appleby Ms. Murphy Teen with ectopic pregnancy 1994

      Secondary doctors and medical students

      Actor/Actress Character Name Character Position Years of Appearance
      Alan Alda Dr. Gabriel Lawrence ER Attending Physician 1999
      Sam Anderson Dr. Jack Kayson Chief of Cardiology and member of the board. 1994–1999, 2001–2005, 2007
      Perry Anzilotti Perry Anesthesiologist 1994–2004, 2006, 2008
      Shiri Appleby Dr. Daria Wade Intern 2008–2009
      Amy Aquino Dr. Janet Coburn Chief of Obstetrics & Gynecology. 1994–2009
      John Aylward Dr. Donald Anspaugh Chief of Staff (1996–1999), General surgeon and member of the board (1999–2006), Chief of Staff (2006–2009) 1996–2008
      Jillian Bach Penny Nicholson Medical Student 2004–2006
      Eion Bailey Jake Scanlon Medical Student 2004–2005
      Lourdes Benedicto Rena Trujillo Pediatrics Intern. Briefly dated Carter in Season 7. 2001
      Leslie Bibb Erin Harkins Medical Student. 2002–2003
      Paul Blackthorne Dr. Jeremy Lawson Invasive Radiologist, had a fling with Dr. Corday. 2004
      Alexis Bledel Dr. Julia Wise Intern who was a key figure in the series finale. 2009
      Dennis Boutsikaris Dr. David Kotlowitz Surgeon 1999
      Joseph Bua Boo Bradley Special Education Student 2001
      David Brisbin Dr. Alexander Babcock Anesthesiologist who hated Dr. Corday and vice versa. 1998–2002
      Clancy Brown Dr. Ellis West SPG Doctor and Kerry Weaver's boyfriend 1997–1998
      L. Scott Caldwell Dr. Megan Rabb Director of Neo-Natology 2004, 2006
      Don Cheadle Paul Nathan Medical Student. Turned from a successful business path after being diagnosed with Parkinson's. 2002
      Megan Cole Dr. Alice Upton Pathologist 1996, 1998, 2000–2001, 2003
      Bruno Campos Dr. Eddie Dorset Vascular Surgeon 2003
      Joel de la Fuente Ivan Fu Medical student 1997
      John Doman Dr. Carl DeRaad Chief of Psychiatry 1999–2001, 2003
      Malaya Rivera Drew Katy Alvaro Medical Student 2006–2007
      Christine Elise Harper Tracy Medical Student and love interest of Carter in Season 2. 1995–1996
      Omar Epps Dr. Dennis Gant Surgical Intern. 1996–1997
      Charles Esten Dr. Barry Grossman Orthopedic Surgeon 2007–2008
      Jorja Fox Dr. Maggie Doyle ER Intern, later resident 1996–1999
      Jami Gertz Dr. Nina Pomerantz Psychiatrist 1997
      Sara Gilbert Dr. Jane Figler ER Intern, later resident 2004—2008
      Matthew Glave Dr. Dale Edson Surgeon. 1996–1999, 2001–2002
      Jeremy Glazer David Medical Student 2004
      Christopher Grove Dr. Marty Kline Orthopeadic Surgeon 2002–2003, 2006
      Glenne Headly Dr. Abby Keaton Pediatric Surgeon 1996–1997
      Justin Henry James Sasser Medical student 1997
      Glenn Howerton Dr. Nick "Coop" Cooper ER Resident 2003
      Michael Ironside Dr. William "Wild Willy" Swift Chief of Surgery and ER Chief 1995, 1998, 2002
      Scott Jaeck Dr. Steve Flint Radiologist 1994–1996, 1999–2000, 2002
      Julia Jones Dr. Kaya Montoya Intern (Prev. Medical Student) 2008–2009
      James LeGros Dr. Max Rocher Pediatrician and ex-boyfriend of Anna Del Amico 1998
      John Leguizamo Dr. Victor Clemente ER attending physician 2005–2006
      Harry Lennix Dr. Greg Fischer Infectious disease specialist and briefly boyfriend of Jeanie Boulet 1997
      Julia Ling Mae Lee Park Surgical Intern 2006–2007
      Chad Lowe Dr. George Henry Medical student, assigned to Dr. Carter in Season 4 but had no interest in doing anything ER related with his focus on medical research. 1997, 2005
      William H. Macy Dr. David Morgenstern Chief of Surgery and Head of the ER 1994–1998; 2009
      J. P. Manoux Dr. Dustin Crenshaw Junior Surgical Attending, (Formerly Chief Resident) 2006–2008
      Kari Matchett Dr. Skye Wexler Acting Chief Of Emergency Medicine 2007–2008
      Mary McCormack Debbie Doctor in Africa 2003–2006
      Gil McKinney Dr. Paul Grady Intern 2007–2009
      Elizabeth Mitchell Dr. Kim Legaspi Psychiatrist who was in a relationship with Kerry Weaver for a short time before being forced out by Dr. Romano's homophobia. 2000–2001
      Julian Morris Dr. Andrew Wade Surgical Intern 2008–2009
      Leland Orser Dr. Lucien Dubenko Attending Trauma Surgeon; Chief of Surgery. 2004–2009
      Steven Christopher Parker Dr. Harold Zelinsky Surgical Intern 2007—2008
      Busy Philipps Hope Bobeck Medical Student. Devout Christian who inspired Archie Morris in various ways, and dated him for a little while. 2006–2007
      Giovannie Pico Ludlow Medical Student 2004–2005
      CCH Pounder Dr. Angela Hicks Surgical Attending 1994–1997
      Victor Rasuk Dr. Ryan Sanchez Intern 2008–2009
      Gina Ravera Dr. Bettina DeJesus Radiologist 2006–2008
      Ron Rifkin Dr. Carl Vucelich Senior Vascular Surgeon. 1995–1996
      Emily Rose Dr. Tracy Martin Intern 2008–2009
      Rick Rossovich Dr. John "Tag" Taglieri Orthopedic Surgeon 1994–1995
      Dahlia Salem Dr. Jessica Albright Surgical Chief Resident 2005–2006
      Eddie Shin Stanley Mao Medical student 2001
      Michael B. Silver Dr. Paul Myers Psychiatrist 1995, 1997–2000, 2003, 2005, 2008
      Maury Sterling Dr. Nelson Psychiatrist 2004, 2006
      Kim Strauss Ari Anesthesiologist 2005–2007
      Rossif Sutherland Lester Kertzenstein Medical student. 2003–2004
      John Terry Dr. David "Div" Cvetic Psychiatrist and boyfriend of Susan Lewis 1994
      Iqbal Theba Dr. Zagerby Ophthalmologist 1997, 2001
      Stanley Tucci Dr. Kevin Moretti Chief of Emergency Medicine 2007–2008
      Vince Vieluf Bernard Gamely Medical Student 1998
      Bresha Webb Laverne St. John Medical Student 2008–2009
      Mare Winningham Dr. Amanda Lee Chief of Emergency Services 1998–1999

      Nurses and other medical staff

      Actor/Actress Character Name Character Position Years of Appearance
      Conni Marie Brazelton Conni Oligario ER Nurse 1994–2003
      Laura Cerón Chuny Marquez ER Nurse 1995–2009
      Cynthia Cervini Anna Waldron Nurse 2002, 2004, 2005
      Morris Chestnut Frank "Rambo" Bacon ICU nurse & Deb's baby's father 2000
      Ellen Crawford Lydia Wright ER Nurse 1994–2003, 2009
      Deezer D Malik McGrath ER Nurse 1994–2009
      Yvette Freeman Haleh Adams ER Nurse 1994–2009
      Ren Hanami NICU Nurse 2006
      Mary Heiss Mary ER Nurse 2000–2008
      April Lee Hernandez Inez ER Nurse 2005–2006
      Penny Johnson Jerald Lynette Evans Nurse Practitioner 1998–1999
      Kristen Johnston Eve Peyton Chief ER Nurse 2005
      Sam Jones III Charlie "Chaz" Pratt, Jr. Emergency Medical Technician, Brother of Greg Pratt 2005–2009
      Dinah Lenney Shirley Surgical Charge Nurse 1995–2004, 2006—2009
      Pat Lentz Nursing Supervisor 2005, 2008
      Bellina Logan Kit ICU, Pediatrics and Surgical Nurse 1996–2003; 2005; 2008
      Donal Logue Chuck Martin Flight Nurse and boyfriend/husband/ex-husband of Susan Lewis 2003–2005
      Lily Mariye Lily Jarvik ER Nurse 1994–2009
      Vanessa Marquez Wendy Goldman ER Nurse 1994–1997
      Deborah May Mary Cain County Nursing Director 1996–1997, 2002
      Sumalee Montano Duvata Mahal ER Nurse 2002-2005
      Angel Laketa Moore Dawn Archer ER Nurse 2006–2009
      Jenny O'Hara Rhonda Sterling ER Nurse 1996
      Kip Pardue Ben Parker ER Nurse 2006–2007
      Kyle Richards Dori Nurse 2000—2006
      Lucy Rodriguez Bjerke Nurse 1996; 2000–2003
      Nadia Shazana Jacy Nurse 2001–2008
      Meg Thalken Dee McManus Flight Nurse 1996, 1999–2001, 2005, 2008
      Gedde Watanabe Yoshi Takata ER Nurse 1997–2003

      Guest stars

      Notable guest stars

      • Ed Asner in 2003, as Dr. James McNulty, who runs a street clinic
      • Kat Dennings in 2006, as Zoe Butler, a victim of parental battering
      • Kirsten Dunst in 1996, as Charlie Chemingo, a victim of child sex abuse
      • Zac Efron in 2003, as Bobby Neville, a gunshot victim
      • Lucy Liu in 1995, as Mei-Sun Leow, the mother of a child dying of AIDS
      • Chris Pine in 2003, as Levine, a drunk teen patient
      • Charlotte Rae in 2008, as Roxanne Gaines
      • Susan Sarandon in 2009, as Nora, a grandmother being asked to consent to the donation of her grandchild's organs
      • Eric Stonestreet in 2000, as Willie, a man who tried to make his ears look Vulcan
      • Charles Tyner in 1999, as Barry Connelly, whose wife hesitates to sign a DNR
      • Wallace Shawn in 2009, as Teddy Lempell, whose love potion may have worked with Jerry
      • Judy Greer in 2009, as Tildie Mulligan, who drove her car into the lake because the GPS told her to go straight
      • Diego Klattenhoff in 2009, as Jay, the best friend of patient, Mr. Walter's, late son.
      • Michael Reilly Burke in 2009, as Dick White, the father that provided vodka at his teenage daughter's slumber party
      • Brian Haley in 2009, as Chris Salamunovich, the husband of the woman having twins
      • Marilu Henner in 2009, as Linda, the obnoxious mother in law who fought with her son's bride at the wedding
      • Eva Mendes in 1998, as Donna, a babysitter concerned with the well-being of the girl she's caring for

      Emmy Award recognized guest stars

      Guest stars whose performances won Emmys are:

      Guest stars whose performances earned Emmy nominations include:

      References

      1. ↑ "Anthony Edwards Scrubs Back in at ER". TV Guide. 2008. Archived from the original on 2008-09-05. Retrieved 2008-09-04.
      2. ↑ "Zap2it - TV news - Kingston Discharged from 'ER'". Archived from the original on 2007-11-13. Retrieved 2009-04-16.
      3. ↑ TVGuide - News - Alex Kingston Books Appointment for ER Return
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