 | A Christmas Carol - A Filmed Radio Play Live on Stage | Ebenezer Scrooge | Movie | 2025 |
 | Doctor Who: Wish World & The Reality War | The Doctor (archive footage) (uncredited) | Movie | 2025 |
 | Doctor Who at the Proms | The Doctor (6) (archive footage) | Movie | 2024 |
 | Doctor Who: 60 Years of Secrets & Scandals | Self - archive | Movie | 2023 |
 | Christmas at the Holly Day Inn | Ben | Movie | 2023 |
 | Talking Doctor Who | Self / The Doctor (6) (archive footage) | Movie | 2023 |
 | Tales of the Tardis | The Doctor | TV Series | 2023 |
 | Buckle Up | Nick | Movie | 2023 |
 | Secrets of a Wallaby Boy | Bruce (voice) | Movie | 2023 |
 | Minacious | DS Rawlins | Movie | 2022 |
 | Remembers… | Self | TV Series | 2022 |
 | The Ghosts of Borley Rectory | Charles Sutton | Movie | 2021 |
 | You Might Get Lost | Conrad | Movie | 2021 |
 | The Big Night In | Self | Movie | 2020 |
 | Showman: The Life of John Nathan-Turner | Himself | Movie | 2019 |
 | The Doctor Who Cookbook Revisited | Self | Movie | 2019 |
 | The Doctors: The Colin Baker Years | Self / Appearance | Movie | 2019 |
 | Doctor Who: The Trial | Self | Movie | 2019 |
 | Doctor Who: Behind the Sofa | Self | TV Series | 2018 |
 | Remembering Deborah Watling | Self | Movie | 2018 |
 | Last Man on Earth | Professor James Friedkin | Movie | 2016 |
 | Doctor Who: The Husbands of River Song | The Doctor (6) (picture) (uncredited) | Movie | 2015 |
 | A Christmas Carol | Charles Dickens | Movie | 2015 |
 | A Dozen Summers | The Narrator | Movie | 2015 |
 | Shadows of a Stranger | William Fallon | Movie | 2014 |
 | Doctor Who: The Ultimate Companion | Self / The Doctor (archive footage) | Movie | 2014 |
 | Doctor Who: The Ultimate Time Lord with Peter Davison | Self | Movie | 2014 |
 | Doctor Who Live: The Afterparty | Self | Movie | 2013 |
 | The Five(ish) Doctors Reboot | Self | Movie | 2013 |
 | Doctor Who: The Day of the Doctor | The Doctor (6) (archive footage) | Movie | 2013 |
 | Doctor Who: Tales from the TARDIS | Self | Movie | 2013 |
 | Doctor Who Live: The Next Doctor | Self | Movie | 2013 |
 | Tipping Point: Lucky Stars | Self - Contestant | TV Series | 2013 |
 | Doctor Who: The Doctors Revisited | Self | TV Series | 2013 |
| BBC Comedy Feeds | Self / Appearance | TV Series | 2012 |
 | Celebrity Antiques Road Trip | Self - Participant | TV Series | 2011 |
 | Pointless Celebrities | Self | TV Series | 2011 |
 | Doctor Who: The Next Doctor | The Doctor (6) (archive footage) | Movie | 2008 |
 | Trials and Tribulations | Self / Appearance | Movie | 2008 |
 | The Making of The Trial of a Time Lord | Self / Appearance | Movie | 2008 |
 | Now, Get Out of That | Self / Appearance | Movie | 2008 |
 | Celebration: Doctor Who in 1983 | Self / Appearance | Movie | 2008 |
 | The Ties That Bind Us | The Sixth Doctor / Commander Maxil (archive footage) | Movie | 2008 |
 | Davros Connections | (archival audio) | Movie | 2007 |
 | The Good, the Bad and the Ugly (documentary) | Self / Appearance | Movie | 2007 |
 | Kingdom | Mr. Dodds | TV Series | 2007 |
 | Built for War: The Sontaran Story | Self / Appearance | Movie | 2006 |
 | Lords and Luddites: Making 'The Mark of the Rani' | Self / Appearance | Movie | 2006 |
 | Doctor Who: A New Dimension | Self | Movie | 2005 |
 | Doctor Who Confidential | Self / Appearance | TV Series | 2005 |
 | Hustle | Phil | TV Series | 2004 |
 | The Story of Doctor Who | Self / Appearance | Movie | 2003 |
 | Adventures in Time and Spain | (archive footage) | Movie | 2003 |
 | The Afternoon Play | Judge | TV Series | 2003 |
 | Doctor Who: Real Time | The Doctor | Movie | 2002 |
 | I'm a Celebrity...Get Me Out of Here! | Self | TV Series | 2002 |
 | Doctor Who: Real Time | The Doctor | TV Series | 2002 |
 | The Home Whovian | Self / Appearance | Movie | 2001 |
 | TravelWise | Jonathan Pike | Movie | 2000 |
 | The Asylum | Arbuthnot | Movie | 2000 |
 | Adventures in Space and Time | Himself | Movie | 1999 |
 | Carnival of Monsters | Self / Appearance | Movie | 1999 |
 | The Waiting Time | Giles Fleming | Movie | 1999 |
 | The Adventures of Young Indiana Jones: Daredevils of the Desert | Chauvel | Movie | 1999 |
 | The Harpist | Self / Appearance | Movie | 1999 |
 | Sunburn | John Buchanan | TV Series | 1999 |
 | Soul's Ark | Galico | Movie | 1999 |
 | A Dance to the Music of Time | Canon Fenneau | TV Series | 1997 |
 | Stranger Than Fiction 3: Acting Up | Self / Appearance | Movie | 1997 |
 | Jonathan Creek | Hedley Shale | TV Series | 1997 |
 | The Doctors: 30 Years of Time Travel and Beyond | Self / Appearance | Movie | 1995 |
 | The Stranger: Eye of the Beholder | The Stranger / Soloman | Movie | 1995 |
 | Stranger than Fiction 2: From Script to Screen | Self / Appearance | Movie | 1995 |
 | The Stranger: Breach of the Peace | The Stranger / Soloman | Movie | 1994 |
 | The Knock | Donald Dewhurst | TV Series | 1994 |
| The Knock | Desmond Dewhurst | TV Series | 1994 |
 | Doctor Who: The Colin Baker Years | Self - Presenter | Movie | 1994 |
 | PROBE: The Zero Imperative | Peter Russell | Movie | 1994 |
 | The Stranger: The Terror Game | The Stranger / Soloman | Movie | 1994 |
 | Stranger than Fiction | Self / Appearance | Movie | 1994 |
 | 30 Years in the TARDIS | Himself | Movie | 1993 |
 | Doctor Who: Dimensions in Time | The 6th Doctor | Movie | 1993 |
 | Bigger Inside Than Out | Narrator | Movie | 1993 |
 | The Airzone Solution | Arnold Davies | Movie | 1993 |
 | The Stranger: In Memory Alone | The Stranger | Movie | 1993 |
 | GMTV | Self | TV Series | 1993 |
 | Doctor Who: Cybermen - The Early Years | Self - Host | Movie | 1992 |
 | The Stranger: More Than a Messiah | The Stranger | Movie | 1992 |
| Pebble Mill | Self | TV Series | 1991 |
 | The PanoptiCon Tapes Vol 1 - The Main Event | Self / Appearance | Movie | 1991 |
 | The Stranger: Summoned by Shadows | The Stranger | Movie | 1991 |
 | The Stranger | The Stranger | TV Series | 1991 |
 | The PanoptiCon Tapes V | Self / Appearance | Movie | 1990 |
 | The PanoptiCon Tapes IV | Self / Appearance | Movie | 1990 |
 | The PanoptiCon Tapes III | Self / Appearance | Movie | 1990 |
 | The PanoptiCon Tapes II | Self / Appearance | Movie | 1990 |
 | Doctor Who: The Ultimate Foe | The Doctor | Movie | 1986 |
 | The PanoptiCon Tapes VI | Self / Appearance | Movie | 1986 |
 | Doctor Who: Terror of the Vervoids | The Doctor | Movie | 1986 |
 | Doctor Who: Mindwarp | The Doctor | Movie | 1986 |
 | Doctor Who: The Mysterious Planet | The Doctor | Movie | 1986 |
 | Casualty | Colin Miles | TV Series | 1986 |
| Casualty | David Vincent | TV Series | 1986 |
 | Who's Who | Self / Appearance | Movie | 1986 |
 | Doctor Who: Revelation of the Daleks | The Doctor | Movie | 1985 |
 | Doctor Who: Timelash | The Doctor | Movie | 1985 |
 | Doctor Who: The Two Doctors | The Doctor | Movie | 1985 |
 | A Fix with Sontarans | The Doctor | Movie | 1985 |
 | Doctor Who: The Mark of the Rani | The Doctor | Movie | 1985 |
 | Doctor Who: Vengeance on Varos | The Doctor | Movie | 1985 |
 | Doctor Who: Attack of the Cybermen | The Doctor | Movie | 1985 |
 | Doctor Who's Who's Who | Doctor Who | TV Series | 1985 |
 | Doctor Who: The Twin Dilemma | The Doctor | Movie | 1984 |
 | Doctor Who: The Caves of Androzani | The Doctor | Movie | 1984 |
| Swallows and Amazons Forever! | Dr. Dudgeon | TV Series | 1984 |
 | Doctor Who: Arc of Infinity | Commander Maxil | Movie | 1983 |
 | Countdown | Self / Appearance | TV Series | 1982 |
 | Wogan | Self | TV Series | 1982 |
 | Dangerous Davies: The Last Detective | William Lind | Movie | 1981 |
 | Blake's 7 | Bayban | TV Series | 1978 |
 | Jim'll Fix It | Doctor Who | TV Series | 1975 |
 | The Carnforth Practice | Bob Anderson | TV Series | 1974 |
 | Fall of Eagles | Crown Prince Willie | TV Series | 1974 |
 | Orson Welles' Great Mysteries | George Barclay | TV Series | 1973 |
 | The Edwardians | Joseph Laycock | TV Series | 1972 |
 | War & Peace | Anatole Kuragin | TV Series | 1972 |
 | Villains | Reporter | TV Series | 1972 |
 | The Brothers | Paul Merroney | TV Series | 1972 |
 | The Moonstone | John Herncastle | TV Series | 1972 |
 | Cousin Bette | Count Wenceslas Steinbock | TV Series | 1971 |
 | The Adventures of Don Quick | Rebel | TV Series | 1970 |
 | The Roads to Freedom | Claude | TV Series | 1970 |
 | The Mind of Mr. J.G. Reeder | Reigate | TV Series | 1969 |
 | Public Eye | Town Hall Clerk | TV Series | 1965 |
 | Doctor Who | Commander Maxil | TV Series | 1963 |
| Doctor Who | The Doctor | TV Series | 1963 |
| Danny Boy | Fred | Movie | — |
