| Movie | 2007 | The 50 Greatest Television Dramas | Self | |
| Movie | 2003 | Devil's Harvest | Father Gabriel Norton | |
| Movie | 1996 | Hamlet | Ghost of Hamlet's Father | |
| Movie | 1980 | Flash Gordon | Prince Vultan | |
| Movie | 1989 | Henry V | Exeter | |
| Movie | 2007 | Back in Business | Trevor Pilkington | |
| Movie | 1991 | Robin Hood: Prince of Thieves | Lord Locksley | |
| Movie | 1993 | Much Ado About Nothing | Antonio | |
| Movie | 1975 | Into Infinity | Dr. Tom Bowen | |
| Movie | 1977 | A Christmas Carol | Narrator (voice) | |
| Movie | 1992 | Old Rococo: The Life of Gioacchino Rossini | Voice of Rossini | |
| Movie | 1971 | The Last Valley | Korski | |
| Movie | 1969 | Till Death Us Do Part | Sergeant | |
| Movie | 1999 | Tarzan | Clayton (voice) | |
| Movie | 1970 | Wine of India | Will | |
| Movie | 1971 | The Trojan Women | Talthybius | |
| Movie | 2000 | The Mumbo Jumbo | Lucifer Bounder | |
| Movie | 1982 | Cosmic Princess | Mentor | |
| Movie | 2007 | The Conclave | Aeneas Sylvius Piccolomin | |
| Movie | 1996 | Catherine the Great | Bestuzhev | |
| Movie | 1994 | MacGyver: Lost Treasure of Atlantis | Atticus | |
| Movie | 1990 | The Castle of Adventure | Sam | |
| Movie | 1972 | Henry VIII and His Six Wives | Suffolk | |
| Movie | 2012 | The Pirates! In an Adventure with Scientists! | The Pirate King (voice) | |
| Movie | 2003 | The Dark Side of Everest | Self | |
| Movie | 2022 | The Queen: 70 Glorious Years | Self | |
| Movie | 1992 | Exam Conditions | Mr. Carksdale | |
| Movie | 1995 | Kidnapped | Cluny MacPherson | |
| Movie | 1992 | Freddie As F.R.O.7. | El Supremo (voice) | |
| Movie | 1970 | Brotherly Love | Jack Baird | |
| Movie | 1984 | The Master of Ballantrae | Captain Teach | |
| Movie | 2022 | Peter O'Toole: Along the Sky Road to Aqaba | Self | |
| Movie | 2011 | Wojtek: The Bear That Went to War | Narrator | |
| Movie | 1998 | Hey, Mr. Producer! The Musical World of Cameron Mackintosh | Old Deuteronomy | |
| Movie | 1991 | Prisoner of Honor | Gen. Gonse | |
| Movie | 2014 | The Seventeenth Kind | The Voice (voice) | |
| Movie | 1997 | Macbeth | Edward the Confessor | |
| Movie | 2014 | Legends of Oz: Dorothy's Return | Judge Jawbreaker (voice) | |
| Movie | 1983 | High Road to China | Suleman Khan | |
| Movie | 1991 | Galahad of Everest | George Mallory/Self | |
| Movie | 1972 | Man of La Mancha | Pedro | |
| Movie | 1996 | The Bruce | Edward I | |
| Movie | 2022 | Bug-Eyed Monsters Invade the Earth! | Narrator | |
| Movie | 2006 | Day of Wrath | Lord Francisco del Ruiz | |
| Movie | 2012 | LEGO Star Wars: The Empire Strikes Out | Boss Nass (voice) | |
| Movie | 1999 | Star Wars: Episode I - The Phantom Menace | Boss Nass (voice) | |
| Movie | 2015 | Peppa Pig: The Golden Boots | Grampy Rabbit (voice) | |
| Movie | 1996 | Genius: Pythagoras | Self | |
| Movie | 1989 | The Old Man Of The Mountain | Narrator | |
| Movie | 1999 | The Greatest Store in the World | Mr. Scottley | |
| Movie | 2012 | Tales of Television Centre | Self | |
| Movie | 1969 | The Double Agent | Reg Sugden | |
| Movie | 1976 | The Eagle Has Landed | Arthur Seymour (voice) (uncredited) | |
| Movie | 1975 | King Arthur, the Young Warlord | Mark of Cornwall | |
| Movie | 1966 | The Christmas Tree | | |
| Movie | 2014 | Brian Cox: Space, Time & Videotape | Self | |
| Movie | 1992 | Back in the USSR | Chazov | |
| Movie | 1992 | Blood and Dust | Chatillon | |
| Movie | 2004 | Alexander | Wrestling Trainer | |
| Movie | 1999 | King Lear | King Lear | |
| Movie | 2010 | Mr. Bojagi | Mr. Bojagi | |
| Movie | 2024 | Peppa's Cinema Party | Grampy Rabbit (voice) | |
| Movie | 1994 | Chasing the Deer | Maj. Elliot | |
| Movie | 1995 | The Doctors: 30 Years of Time Travel and Beyond | | |
| Movie | 2006 | As You Like It | Duke Senior/Duke Frederick | |
| Movie | 2012 | So You Want To Be A Pirate! | The Pirate King | |
| Movie | 1983 | The Hound of the Baskervilles | Geoffrey Lyons | |
| Movie | 2006 | Mist: The Tale of a Sheepdog Puppy | Sir Gregory | |
| Movie | 2019 | Shed of the Dead | Narrator (voice) | |
| Movie | 2017 | Life After Flash | Self | |
| Movie | 2004 | 448 BC: Olympiad of Ancient Hellas | Narrator | |
| Movie | 2018 | Robin Hood: The Rebellion | Friar Tuck | |
| Movie | 1994 | David Macaulay: Roman City | Gaius Valerius (voice) | |
| Movie | 1986 | David Macaulay: Cathedral | Master Guillaume (voice) | |
| Movie | 1989 | David Macaulay: Pyramid | Ankhaf (voice) | |
| Movie | 1983 | David Macaulay: Castle | Voice | |
| Movie | 2004 | The Legend of the Tamworth Two | Wild Boar (voice) | |
| Movie | 2008 | The Making of The Trial of a Time Lord | | |
| Movie | 2020 | Eugenius! | Space Lord | |
| Movie | 2002 | I, Claudius: A Television Epic | Self | |
| Movie | 2021 | Trollhunters: Rise of the Titans | Charlemagne (voice) | |
| Movie | 1986 | Doctor Who: Mindwarp | King Yrcanos | |
| Movie | 2020 | Dear Mr. Burton | Narrator | |
| Movie | 1975 | A Midsummer Nightmare | Det Sgt George Briggs | |
| Movie | 2008 | Blackadder's Most Cunning Moments | Self | |
| Movie | 1969 | Son of Man | Peter | |
| Movie | 2008 | Agent Crush | Boris Goudphater (voice) | |
| Movie | 2024 | Peppa Pig: Wedding Party! | Grampy Rabbit (voice) | |
| Movie | 1971 | The Bristol Entertainment | Cabot / Wolstan / Pocock / Colston / Pope Gregory / Dr. Beddoes | |
| Movie | 2025 | Time Travel Is Dangerous! | Gavin the Octopus (voice) | |
| Movie | 1979 | Tales of the Unexpected: Lamb to the Slaughter | Detective Jack Noonan | |
| TV Show | 1973 | Thriller | Det Sgt George Briggs | 1 |
| TV Show | 1975 | The Sweeney | Frank Kemble | 1 |
| TV Show | 1995 | Soccer AM | Self | 1 |
| TV Show | 1999 | Family Guy | Prince Vultan (voice) | 1 |
| TV Show | 1978 | Blake's 7 | Vargas | 1 |
| TV Show | 1963 | Doctor Who | King Yrcanos | 4 |
| TV Show | 1979 | Tales of the Unexpected | Detective Sergeant Jack Nolan | 1 |
| TV Show | 1961 | The Avengers | Sergeant Hearn | 1 |
| TV Show | 2002 | Ant & Dec's Saturday Night Takeaway | Self | 1 |
| TV Show | 2004 | The Paul O'Grady Show | | 1 |
| TV Show | 2008 | The Underdog Show | | 10 |
| TV Show | 1979 | Minder | Freddie Dyer | 1 |
| TV Show | 1975 | Survivors | Brod | 1 |
| TV Show | 1976 | I, Claudius | Augustus | 5 |
| TV Show | 1986 | Lovejoy | Harry Catapodis | 2 |
| TV Show | 1979 | The Aphrodite Inheritance | Basileos | 8 |
| TV Show | 1951 | Hallmark Hall of Fame | Captain Teach | 1 |
| TV Show | 1983 | Blackadder | King Richard IV | 6 |
| TV Show | 2004 | Peppa Pig | Grampy Rabbit (voice) | 416 |
| TV Show | 1972 | Shirley's World | | 1 |
| TV Show | 1968 | The Expert | Hubert Innes | 1 |
| TV Show | 1967 | The Further Adventures of the Musketeers | Porthos | 16 |
| TV Show | 1974 | Notorious Woman | | 2 |
| TV Show | 1974 | Boy Dominic | William Woodcock | 13 |
| TV Show | 1991 | Pebble Mill | Self | 2 |
| TV Show | 1998 | The Heaven and Earth Show | | 1 |
| TV Show | 1988 | A Question Of Entertainment | | 1 |
| TV Show | 1965 | BBC Play of the Month | Sgt. Kite | 1 |
| TV Show | 2001 | Fun at the Funeral Parlour | | 1 |
| TV Show | 1983 | Natural World | | 1 |
| TV Show | 1993 | GMTV | Self | 1 |
| TV Show | 1966 | The Three Musketeers | Porthos | 10 |
| TV Show | 2008 | All Star Mr & Mrs | | 1 |
| TV Show | 2010 | Fee Fi Fo Yum | GTV Announcer | 1 |
| TV Show | 1998 | Fantasy World Cup | Self | 1 |
| TV Show | 2007 | Britain's Got More Talent | Self - Narrator | 17 |
| TV Show | 1997 | The History of Tom Jones: A Foundling | Squire Western | 5 |
| TV Show | 1962 | Z-Cars | PC Smith | 1 |
| TV Show | 1962 | Z-Cars | PC Fancy Smith | 1 |
| TV Show | 1986 | John Silver's Return to Treasure Island | Long John Silver | 10 |
| TV Show | 1982 | The Kenny Everett Television Show | Self | 1 |
| TV Show | 2014 | The Kumars | Self | 1 |
| TV Show | 2004 | Who Do You Think You Are? | Self | 1 |
| TV Show | 1975 | The Day After Tomorrow | Dr. Tom Bowen | 1 |
| TV Show | 2015 | Danger Mouse | Santa Claus (voice) | 1 |
| TV Show | 1971 | Justice | Tiger Lawson | 1 |
| TV Show | 2007 | Would I Lie to You? | Self | 1 |
| TV Show | 1984 | The Last Days of Pompeii | Olinthus | 3 |
| TV Show | 1996 | Dennis the Menace and Gnasher | Captain (voice) | 1 |
| TV Show | 2012 | Wizards vs Aliens | The Nekross King (voice) | 36 |
| TV Show | 1993 | Sooty & Co. | Santa Claus | 1 |
| TV Show | 2011 | Sooty | Father Christmas | 1 |
| TV Show | 2003 | The Royal | Sir Edward Fawcett | 1 |
| TV Show | 2022 | Sunday with Laura Kuenssberg | Self – Actor | 1 |
| TV Show | 2011 | The Amazing World of Gumball | Santa Claus (voice) | 1 |
| TV Show | 2020 | Close Enough | Sir Jack Kleghorn (voice) | 1 |
| TV Show | 2003 | QI | Self | 1 |
| TV Show | 1969 | Randall and Hopkirk (Deceased) | Jim Lawsey | 1 |
| TV Show | 1995 | Johnny and the Dead | William Stickers | 4 |
| TV Show | 1968 | Cold Comfort Farm | Reuben Starkadder | 3 |
| TV Show | 2021 | Blankety Blank | Self - Panellist | 1 |
| TV Show | 1981 | The Little World of Don Camillo | Peppone | 13 |
| TV Show | 2017 | The Russell Howard Hour | Self | 1 |
| TV Show | 1962 | Z-Cars | PC William "Fancy" Smith | 170 |
| TV Show | N/A | Have I Got a Bit More News for You | Self - Presenter | 2 |
| TV Show | 2011 | Celebrity Antiques Road Trip | Self - Participant | 1 |
| TV Show | 1987 | My Family and Other Animals | Spiro | 10 |
| TV Show | 1965 | Public Eye | Rev. William Pratt | 1 |
| TV Show | 1972 | Arthur of the Britons | Mark of Cornwall | 2 |
| TV Show | 1965 | The Troubleshooters | Eddie Barnaby | 1 |
| TV Show | 1975 | Space: 1999 | Mentor | 1 |
| TV Show | 1975 | Space: 1999 | Cabot Rowland | 1 |
| TV Show | 2010 | Take Me Out | Announcer (voice) | 9 |
| TV Show | 2007 | Saving Planet Earth UK | Himself - Presenter | 1 |
| TV Show | 2000 | The Nearly Complete and Utter History of Everything | | 2 |
| TV Show | 1961 | The Avengers | Mark Dayton | 1 |
| TV Show | 2022 | Best & Bester | Shouty Shirt (Voice) | 52 |
| TV Show | 1990 | Have I Got News for You | Self - Host | 2 |
| TV Show | 1964 | The Wednesday Play | Peter | 2 |
| TV Show | 1993 | Lady Chatterley | Petty Officer | 1 |
| TV Show | 1974 | Churchill's People | Guthrum | 1 |
| TV Show | 1973 | European Heritage | Narrator (voice) | 1 |