Theatre

In 1991, Joseph won second prize in the Ian Charleson Awards, for his 1990 performances of Oswald in King Lear, Dumaine in Love's Labour's Lost, and the Marquis de Mota in The Last Days of Don Juan, all at the Royal Shakespeare Company.^[7] In 1992 he starred as Richard Henry in Blues for Mister Charlie by James Baldwin, directed by Greg Hersov at the Royal Exchange, Manchester.

Joseph's theatre credits include the title role in Othello at the Royal Exchange, Manchester, as well as parts in Henry IV, King Lear, and Hamlet for a performance in New York City.^[8] In 2012 he played Brutus in a performance by the RSC of Julius Caesar set in Africa. In 2004 he undertook a project, filmed for Channel 4 in a documentary entitled My Shakespeare, to direct a version of Romeo & Juliet, using 20 young non-actors from the deprived Harlesden area of London.^[9]

In 2006, he became a patron of OffWestEnd.com, a listings site for theatre outside the mainstream.^[10] Other stage appearances in 2006 and 2007 include the leads in The Royal Hunt of the Sun and The Emperor Jones at the Olivier Theatre, London.^[11][12] In 2015, Sancho: An Act of Remembrance, a solo play written and performed by Joseph and based on the life of Ignatius Sancho, was staged in Oxford and Birmingham, and toured in the US starting in October.^[13][14][15]

In late 2019 and early 2020, Joseph starred as Ebenezer Scrooge at the Old Vic Theatre in London in their production of A Christmas Carol.

Television

He has played many roles in British television programmes, both drama and comedy. These include Reuben in William and Mary, alongside Martin Clunes; Mark Grace in Casualty; the Marquis de Carabas in Neverwhere; Alan Johnson in Peep Show; Lyndon Jones in Green Wing; and Shorty in the first episode of Jericho.

Joseph also appeared in the acclaimed drama Sex Traffic (2004), in the 2005 TV version of Kwame Kwei-Armah's acclaimed play Elmina's Kitchen and in the Doctor Who episodes "Bad Wolf" and "The Parting of the Ways" as Rodrick, a contestant on a futuristic version of The Weakest Link game show. He has also appeared in various supporting roles in Dead Ringers.^[16] In 2006, he appeared in the television sketch show That Mitchell and Webb Look, in which he played Simon, a contestant on the game show Numberwang.^[8]

In 2007, Joseph played Space Marshall Clarke in two series of the BBC sci-fi sitcom Hyperdrive, and was Benjamin Maddox in the BBC drama series Jekyll. Joseph also provided the voice of K.O. Joe in Chop Socky Chooks.

From 2008 to 2010, Joseph played Greg Preston in Survivors, the BBC remake of the 1970s science-fiction drama of the same name. Also in 2008, Joseph appeared as former hitman Patrick Finch in Series 1, Episode 5 of The Fixer.

Joseph played DI Wes Layton in Law & Order: UK from 2013 to 2014.

He played the messianic "Holy Wayne" Gilchrest on the original HBO dramatic series The Leftovers, which began airing in 2014, and General Arnold Gaines on You, Me and the Apocalypse.

He took up the main role of Connor Mason in the television series Timeless, which ended in 2018.^[17]

In 2020, Joseph played the part of Home Secretary Kamal Hadley in the series of Noughts + Crosses.^[18]

As voice actor, Joseph provided the narration for the National Geographic series Mega Cities from 2005 to 2011, Wild Russia in 2009 and the BBC Two documentary Inside Obama's White House in 2016.^[19] He played Tyler in the BBC Switch film Rules of Love in 2010.

Film

Joseph's first feature film role was as Benbay in Jim Sheridan's In the Name of the Father.

In 2000, Joseph appeared as Keaty in Danny Boyle's adventure drama film The Beach, which starred Leonardo DiCaprio. In the same year, he also appeared in The Long Run and Greenfingers.

In 2005, he portrayed Giroux in the science-fiction action film Æon Flux, which starred Charlize Theron. Then in 2008 he played a supporting role in The Other Man, opposite Liam Neeson and Antonio Banderas.

Joseph appears as villain Arthur Slugworth, part of an ensemble cast in the 2023 musical fantasy film Wonka, directed by Paul King.^[20]

Joseph has also appeared in several short films, including Stop the World, directed by Richard Leaf. He voiced the character of Victor in the 2023 drama short film Bet Your Bottom Dollar^[21] produced by British-Canadian filmmaker Jonathan Tammuz.

Voice work

In 2011, Joseph returned to Doctor Who, where he appeared in the audio drama Earth Aid, playing Victor Espinosa.^[22] In November 2016 he played the title role in the BBC radio adaptation of the short story by Neil Gaiman, How the Marquis Got His Coat Back. Joseph had previously played the part of the Marquis de Carabas in the 1996 BBC TV six-part drama Neverwhere. He played the role of Colonel Arbuthnott in the Audible production of Murder on the Orient Express.

Joseph read the BBC Radio 4 abridgement of George Lamming's 1953 debut novel In the Castle of My Skin first broadcast in December 2020.^[23]

Lectures

Joseph has delivered such keynote public lectures as the Memorial 2007 Annual Lecture at the Institute of Commonwealth Studies^[24] and at Lancaster University.^[25]

Writing

In October 2022, Joseph's debut novel The Secret Diaries of Charles Ignatius Sancho was released, published by Dialogue Books.^[26] The book charts the life of Charles Ignatius Sancho through fictionalised diary entries, letters and commentary. Writing in The New York Times, reviewer Thomas Mallon concluded: "With the conjuring tricks of historical fiction, Joseph has taken an actual man and, two and a half centuries later, made him as thoroughly himself, and as fully present, as he was the first time round."^[27] The novel was shortlisted for the 2023 Jhalak Prize,^[28] and won the 2023 RSL Christopher Bland Prize.^[29][30]

Chancellor of Oxford Brookes University

In October 2022, Joseph was announced as the next Chancellor of Oxford Brookes University^[31][32] (previous holders of the role including Helena Kennedy, Jon Snow, Shami Chakrabarti and Katherine Grainger) and was officially installed in May 2023.^[33][34]

Television

Film