 | Alec Guinness: A Class Act (2024) as self |
 | Peter O'Toole: Along the Sky Road to Aqaba (2022) as Self |
 | From This Day Forward (2019) as Him |
 | The Doctors: The Colin Baker Years (2019) |
 | UFO From Earth to the Moon (2016) as Self |
 | Albert's Memorial (2009) as Albert |
 | The Making of The Trial of a Time Lord (2008) |
 | Finisterre (2003) as Narrator (Voice) |
 | 20,000 Leagues Under the Sea (1997) as Admiral Sellings |
 | Element of Doubt (1996) as Kirk |
 | Highlander III: The Sorcerer (1994) as Jack Donovan |
 | Somewhere to Run (1989) as Roger Fitzpatrick |
| | Still Crazy Like a Fox (1987) as Randall Perry |
 | Doctor Who: The Ultimate Foe (1986) as The Valeyard |
 | Doctor Who: Terror of the Vervoids (1986) as The Valeyard |
 | Doctor Who: Mindwarp (1986) as The Valeyard |
 | Doctor Who: The Mysterious Planet (1986) as The Valeyard |
 | The Man Who Left His Soul on Film (1983) |
 | From a Far Country (1981) as Narrator (voice) |
 | Dominique (1980) as Arnold Craven |
 | Gossip from the Forest (1979) as Alfred Maiberling |
 | Zulu Dawn (1979) as Col. Crealock |
| | The Last Romantic (1978) as James |
 | She Fell Among Thieves (1978) as Mansel |
 | King Lear (1975) as Edmund |
 | The Internecine Project (1974) as David Baker |
 | A Coffin for the Bride (1974) as Mark Walker |
 | Craze (1974) as Detective Sgt. Wall |
| | The Importance of Being Earnest (1974) as Jack Worthing |
 | Ring Once for Death (1973) as Roger Masters |
 | Tales That Witness Madness (1973) as Brian (segment "Mel") |
 | The Homecoming (1973) as Teddy |
 | The Merchant of Venice (1973) as Gratiano |
 | Bequest to the Nation (1973) as Capt. Hardy |
 | Alice's Adventures in Wonderland (1972) as Lewis Carroll (Charles Dodgson) |
 | Follow Me! (1972) as Charles |
 | Nicholas and Alexandra (1971) as Nicholas |
 | Competition (1971) as Jimmy |
| | Green Julia (1971) as Jake |
 | Macbeth (1970) as Macbeth |
 | Cromwell (1970) as Henry Ireton |
 | The Hero of My Life (1970) as Charles Dickens |
 | Mad Jack (1970) |
 | A Midsummer Night's Dream (1968) as Demetrius |
 | Love's Labour's Lost (1965) as Longaville |
 | First Kid Original Music Composer |
