Filmography
| Year | Title | Role |
| 1979 | Being There | Chance ('Chauncey Gardiner') |
| 1979 | The Prisoner of Zenda | Rudolf IV/Rudolf V/Syd Frewin |
| 1978 | Revenge of the Pink Panther | Chief Inspector Jacques Clouseau |
| 1976 | The Pink Panther Strikes Again | Chief Inspector Clouseau |
| 1976 | Murder by Death | Inspector Sidney Wang |
| 1975 | The Return of the Pink Panther | Inspector Jacques Clouseau |
| 1974 | Soft Beds, Hard Battles | Général Latour/Major Robinson/Herr Schroeder/Adolf Hitler/The President/Prince Kyoto |
| 1973 | The Blockhouse | Rouquet |
| 1972 | Alice's Adventures in Wonderland (1972) | The March Hare |
| 1970 | A Day at the Beach | The Salesman |
| 1970 | There's a Girl in My Soup | Robert Danvers |
| 1970 | The Magic Christian | Sir Guy Grand |
| 1968 | The Party | Hrundi V. Bakshi |
| 1968 | I Love You, Alice B. Toklas | Harold |
| 1967 | Casino Royale (1967) | Evelyn Tremble/James Bond/007 |
| 1966 | After the Fox | Aldo Vanucci/Federico Fabrizi |
| 1966 | The Wrong Box | Doctor Pratt |
| 1965 | What's New, Pussycat? | Dr. Fritz Fassbender |
| 1964 | Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb (1964) | Group Capt. Lionel Mandrake/President Merkin Muffley/Dr. Strangelove |
| 1964 | UNUSED A Shot in the Dark (1964) | Jacques Clouseau |
| 1964 | The World of Henry Orient | Henry Orient |
| 1964 | Carol for Another Christmas | Imperial Me |
| 1963 | Heavens Above! | The Rev. John Smallwood |
| 1963 | The Pink Panther | Inspector Jacques Clouseau |
| 1963 | Never Let Go (1963) | Lionel Meadows |
| 1962 | Only Two Can Play | John Lewis |
| 1962 | Lolita (1962) | Clare Quilty |
| 1962 | The Road to Hong Kong | Indian Neurologist |
| 1962 | Mr. Topaze | Auguste Topaze |
| 1960 | I'm All Right Jack | Fred Kite / Sir John Kennaway |
| 1960 | The Millionairess | Dr. Ahmed el Kabir |
| 1959 | The Mouse That Roared | Grand Duchess Gloriana XII/Prime Minister Count Rupert Mountjoy/Tully Bascombe |
| 1959 | Battle of the Sexes (1998) | Mr. Martin |
| 1958 | Tom Thumb (1958) | Antony |
| 1957 | The Smallest Show on Earth | Percy Quill, Bijou Projectionist |
| 1957 | The Naked Truth | Sonny MacGregor |
| 1955 | The Ladykillers (1956) | Harry |
| 1955 | John and Julie | Police Constable Diamond |
| 1952 | Down Among The Z Men | Major Bloodnok |
