Filmography128 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | Space: 1999 4K Double Bill - Breakaway and The MetamorphMovie | Mentor | 90 |
| 2025 | Time Travel Is Dangerous!Movie | Gavin the Octopus (voice) | 89 |
| 2022 | Sunday with Laura KuenssbergSeries | Self – Actor | 86 |
| 2022 | Peter O'Toole: Along the Sky Road to AqabaMovie | Self | 86 |
| 2022 | Best & BesterSeries | Shouty Shirt (Voice) | 86 |
| 2021 | Blankety BlankSeries | Self - Panellist | 85 |
| 2021 | Peter O'Toole Réalta & RógaireMovie | Self | 85 |
| 2020 | Close EnoughSeries | Sir Jack Kleghorn (voice) | 84 |
| 2018 | Robin Hood: The RebellionMovie | Friar Tuck | 82 |
| 2017 | The Russell Howard HourSeries | Self | 81 |
| 2015 | Danger MouseSeries | Santa Claus (voice) | 79 |
| 2015 | Peppa Pig: The Golden BootsMovie | Grampy Rabbit (voice) | 79 |
| 2014 | Legends of Oz: Dorothy's ReturnMovie | Judge Jawbreaker (voice) | 78 |
| 2014 | The KumarsSeries | Self | 78 |
| 2013 | Was It Something I Said?Series | Self - Narrator | 77 |
| 2012 | Tales of Television CentreMovie | Self | 76 |
| 2012 | Wizards vs AliensSeries | The Nekross King (voice) | 76 |
| 2012 | So You Want To Be A Pirate!Movie | The Pirate King | 76 |
| 2011 | Celebrity Antiques Road TripSeries | Self - Participant | 75 |
| 2011 | SootySeries | Father Christmas | 75 |
| 2008 | All Star Mr & MrsSeries | — | 72 |
| 2008 | Blackadder's Most Cunning MomentsMovie | Self | 72 |
| 2008 | The Making of The Trial of a Time LordMovie | — | 72 |
| 2007 | Would I Lie to You?Series | Self | 71 |
| 2007 | The 50 Greatest Television DramasMovie | Self | 71 |
| 2007 | Saving Planet Earth UKSeries | Himself - Presenter | 71 |
| 2007 | Back in BusinessMovie | Trevor Pilkington | 71 |
| 2007 | Britain's Got More TalentSeries | Self - Narrator | 71 |
| 2006 | The ConclaveMovie | Aeneas Sylvius Piccolomin | 70 |
| 2006 | Day of WrathMovie | Lord Francisco del Ruiz | 70 |
| 2005 | The Funny Blokes of British ComedyMovie | King Richard IV (archive footage) (uncredited) | 69 |
| 2005 | Mist: The Tale of a Sheepdog PuppyMovie | Sir Gregory(voice) | 69 |
| 2004 | AlexanderMovie | Wrestling Trainer | 68 |
| 2004 | The Legend of the Tamworth TwoMovie | Wild Boar (voice) | 68 |
| 2004 | Who Do You Think You Are?Series | Self | 68 |
| 2004 | The Paul O'Grady ShowSeries | — | 68 |
| 2004 | Peppa PigSeries | Grampy Rabbit (voice) | 68 |
| 2003 | The RoyalSeries | Sir Edward Fawcett | 67 |
| 2003 | QISeries | Self | 67 |
| 2003 | The Dark Side of EverestMovie | Self | 67 |
| 2003 | Devil's HarvestMovie | Father Gabriel Norton | 67 |
| 2002 | Ant & Dec's Saturday Night TakeawaySeries | Self | 66 |
| 2002 | The Making of Chitty Chitty Bang BangMovie | Self - Actor | 66 |
| 2001 | Fun at the Funeral ParlourSeries | — | 65 |
| 2001 | I Love 1980'sSeries | — | 65 |
| 2000 | The Nearly Complete and Utter History of EverythingSeries | — | 64 |
| 2000 | The Mumbo JumboMovie | Lucifer Bounder | 64 |
| 1999 | Family GuySeries | Prince Vultan (voice) | 63 |
| 1999 | Star Wars: Episode I - The Phantom MenaceMovie | Boss Nass (voice) | 63 |
| 1999 | TarzanMovie | Clayton (voice) | 63 |
| 1999 | The Greatest Store in the WorldMovie | Mr. Scottley | 63 |
| 1999 | King LearMovie | King Lear | 63 |
| 1998 | The Heaven and Earth ShowSeries | — | 62 |
| 1998 | Hey, Mr. Producer! The Musical World of Cameron MackintoshMovie | Old Deuteronomy | 62 |
| 1998 | Fantasy World CupSeries | Self | 62 |
| 1997 | MacbethMovie | Edward the Confessor | 61 |
| 1996 | HamletMovie | Ghost of Hamlet's Father | 60 |
| 1996 | Catherine the GreatMovie | Bestuzhev | 60 |
| 1996 | Genius: PythagorasMovie | Self | 60 |
| 1995 | KidnappedMovie | Cluny MacPherson | 59 |
| 1995 | Soccer AMSeries | Self | 59 |
| 1994 | MacGyver: Lost Treasure of AtlantisMovie | Atticus | 58 |
| 1993 | GMTVSeries | Self | 57 |
| 1993 | Much Ado About NothingMovie | Antonio | 57 |
| 1992 | Back in the USSRMovie | Chazov | 56 |
| 1991 | Robin Hood: Prince of ThievesMovie | Lord Locksley | 55 |
| 1991 | Pebble MillSeries | Self | 55 |
| 1991 | Prisoner of HonorMovie | Gen. Gonse | 55 |
| 1991 | Galahad of EverestMovie | George Mallory/Self | 55 |
| 1990 | Have I Got News for YouSeries | Self - Host | 54 |
| 1990 | The Castle of AdventureMovie | Sam | 54 |
| 1989 | Henry VMovie | Exeter | 53 |
| 1988 | War and RemembranceSeries | Yevlenko | 52 |
| 1987 | CrossbowSeries | — | 51 |
| 1987 | My Family and Other AnimalsSeries | Spiro | 51 |
| 1986 | LovejoySeries | Harry Catapodis | 50 |
| 1986 | Doctor Who: MindwarpMovie | King Yrcanos | 50 |
| 1986 | David Macaulay: CathedralMovie | Master Guillaume (voice) | 50 |
| 1986 | John Silver's Return to Treasure IslandSeries | Long John Silver | 50 |
| 1985 | Blake's 7: The BeginningMovie | Vargas | 49 |
| 1984 | The Last Days of PompeiiSeries | Olinthus | 48 |
| 1983 | BlackadderSeries | King Richard IV | 47 |
| 1983 | Natural WorldSeries | — | 47 |
| 1983 | High Road to ChinaMovie | Suleman Khan | 47 |
| 1983 | David Macaulay: CastleMovie | Voice | 47 |
| 1982 | Cosmic PrincessMovie | Mentor | 46 |
| 1980 | Flash GordonMovie | Prince Vultan | 44 |
| 1979 | MinderSeries | Freddie Dyer | 43 |
| 1979 | Tales of the UnexpectedSeries | Detective Sergeant Jack Nolan | 43 |
| 1979 | Tales of the Unexpected: Lamb to the SlaughterMovie | Detective Jack Noonan | 43 |
| 1979 | The Aphrodite InheritanceSeries | Basileos | 43 |
| 1978 | Blake's 7Series | Vargas | 42 |
| 1977 | A Christmas CarolMovie | Narrator (voice) | 41 |
| 1976 | I, ClaudiusSeries | Augustus | 40 |
| 1976 | The Eagle Has LandedMovie | Arthur Seymour (voice) (uncredited) | 40 |
| 1976 | Nobody's HouseSeries | Jack Treadful | 40 |
| 1975 | Space: 1999Series | Cabot Rowland | 39 |
| 1975 | The SweeneySeries | Frank Kemble | 39 |
| 1975 | SurvivorsSeries | Brod | 39 |
| 1975 | A Midsummer NightmareMovie | Det Sgt George Briggs | 39 |
| 1975 | The Day After Tomorrow: Into InfinityMovie | Dr. Tom Bowen | 39 |
| 1974 | Churchill's PeopleSeries | Guthrum | 38 |
| 1974 | Notorious WomanSeries | Albert Grzymala | 38 |
| 1973 | ThrillerSeries | Det Sgt George Briggs | 37 |
| 1973 | European HeritageSeries | Narrator (voice) | 37 |
| 1972 | Man of La ManchaMovie | Pedro | 36 |
| 1972 | Henry VIII and His Six WivesMovie | Suffolk | 36 |
| 1972 | Shirley's WorldSeries | — | 36 |
| 1971 | JusticeSeries | Tiger Lawson | 35 |
| 1971 | The Bristol EntertainmentMovie | Cabot / Wolstan / Pocock / Colston / Pope Gregory / Dr. Beddoes | 35 |
| 1971 | The Last ValleyMovie | Korski | 35 |
| 1970 | Wine of IndiaMovie | Will | 34 |
| 1970 | Brotherly LoveMovie | Jack Baird | 34 |
| 1969 | Randall and Hopkirk (Deceased)Series | Jim Lawsey | 33 |
| 1969 | ITV Saturday Night TheatreSeries | Ted Gissing | 33 |
| 1969 | Till Death Us Do PartMovie | Sergeant | 33 |
| 1968 | The ExpertSeries | Hubert Innes | 32 |
| 1967 | ITV PlayhouseSeries | Reg Sugden | 31 |
| 1966 | The Christmas TreeMovie | — | 30 |
| 1965 | BBC Play of the MonthSeries | Sgt. Kite | 29 |
| 1965 | Public EyeSeries | Rev. William Pratt | 29 |
| 1965 | The TroubleshootersSeries | Eddie Barnaby | 29 |
| 1964 | The Wednesday PlaySeries | Peter | 28 |
| 1963 | Doctor WhoSeries | King Yrcanos | 27 |
| 1962 | Z-CarsSeries | PC William "Fancy" Smith | 26 |
| 1961 | The AvengersSeries | Mark Dayton | 25 |
| 1951 | Hallmark Hall of FameSeries | Captain Teach | 15 |
| 0 | Have I Got a Bit More News for YouSeries | Self - Presenter | — |