| 2010 | Beauty and the Beast | Duke Edward | Film |
| 2004 | Remember the Secret Policeman's Ball? | Self (archive footage) | Film |
| 1990 | A Life In Pieces | Sir Arthur Streeb-Greebling | TV |
| 1989 | The Secret Policeman’s Biggest Ball | Self | Film |
| 1989 | Getting It Right | Mr. Adrian | Film |
| 1988 | Mr Jolly Lives Next Door | Mr Jolly | Film |
| 1988 | Without a Clue | Greenhough | Film |
| 1987 | The Princess Bride | The Impressive Clergyman | Film |
| 1986 | Whoops Apocalypse | Sir Mortimer Chris (Prime Minister) | Film |
| 1985 | Supergirl: The Making of the Movie | Self / Nigel | Film |
| 1984 | Supergirl | Nigel | Film |
| 1983 | Yellowbeard | Lord Percy Lambourn | Film |
| 1983 | Yellowbeard | Writer | Film |
| 1982 | The Secret Policeman's Other Ball | Self - Various Roles | Film |
| 1979 | Derek and Clive Get the Horn | Clive | Film |
| 1979 | The Secret Policeman's Ball | Various Roles | Film |
| 1979 | Derek and Clive Get the Horn | Writer | Film |
| 1978 | The Hound of the Baskervilles | Sherlock Holmes | Film |
| 1978 | Revolver | Self - Host | TV |
| 1978 | The Hound of the Baskervilles | Writer | Film |
| 1977 | The Mermaid Frolics | E. L. Wisty | Film |
| 1977 | The Mermaid Frolics | Writer | Film |
| 1976 | Pleasure at Her Majesty's | Self | Film |
| 1974 | ‘Rameau’s Nephew’ by Diderot (Thanx to Dennis Young) by Wilma Schoen | British Comedian (voice) | Film |
| 1972 | The Adventures of Barry McKenzie | Dominic | Film |
| 1970 | The Rise and Rise of Michael Rimmer | Michael Rimmer | Film |
| 1970 | The Rise and Rise of Michael Rimmer | Writer | Film |
| 1969 | Monte Carlo or Bust! | Maj. Digby Dawlish | Film |
| 1969 | The Bed Sitting Room | Inspector | Film |
| 1968 | Goodbye Again | Various | TV |
| 1968 | A Dandy in Aspic | Prentiss | Film |
| 1968 | Goodbye Again | Writer | TV |
| 1967 | Bedazzled | George Spiggot | Film |
| 1966 | Alice in Wonderland | Mad Hatter | Film |
| 1966 | The Wrong Box | Morris Finsbury | Film |
| 1964 | Beyond the Fringe | Various Characters | Film |
| 1964 | Not Only... But Also | | TV |
| 1964 | Beyond the Fringe | Writer | Film |
| 1964 | Not Only... But Also | Writer | TV |
| 1960 | Ten Thousand Talents | | Film |
| 1958 | Bachelor of Hearts | Pedestrian in Street (uncredited) | Film |