Filmography
| Year | Title | Role |
| 2023 | Mad About the Boy: The Noel Coward Story (2024) | Self |
| 2012 | For No Good Reason | Self |
| 2004 | Sky Captain and the World of Tomorrow | Dr. Totenkopf |
| 1988 | The War Requiem | The Old Soldier |
| 1984 | The Bounty | Admiral Hood |
| 1982 | Voyage' Round My Father | Clifford Mortimer |
| 1981 | Clash of the Titans (2010) | Zeus |
| 1980 | The Jazz Singer (1980) | Cantor Rabinovitch |
| 1979 | A Little Romance | Julius |
| 1978 | The Boys From Brazil | Ezra Lieberman |
| 1978 | The Betsy | Loren Hardeman |
| 1977 | A Bridge Too Far | Doctor Spaander |
| 1976 | Marathon Man | Dr. Christian Szell |
| 1976 | The Seven-Per-Cent Solution | Professor James Moriarty |
| 1974 | Love Among the Ruins | Sir Arthur Glanville-Jones |
| 1972 | Sleuth | Andrew Wyke |
| 1971 | Nicholas and Alexandra | Count Witte |
| 1970 | Three Sisters (1970) | Dr. Ivan Chebutikin |
| 1969 | Battle of Britain | Air Chief Marshal Sir Hugh Dowding |
| 1969 | Oh! What a Lovely War | Field Marshal Sir John French |
| 1968 | The Shoes of the Fisherman | Piotr Ilyich Kamenev |
| 1966 | Khartoum | The Mahdi |
| 1965 | Bunny Lake Is Missing | Superintendent Newhouse |
| 1960 | The Entertainer | Archie Rice |
| 1960 | Spartacus | Marcus Licinius Crassus |
| 1959 | The Devil's Disciple | Gen. Burgoyne |
| 1957 | The Prince and the Showgirl | The Regent |
| 1955 | Richard III | Richard III |
| 1953 | The Beggar's Opera | Captain MacHeath |
| 1948 | Hamlet (1948) | Hamlet, Prince of Denmark |
| 1945 | Henry V | King Henry V of England |
| 1941 | 49th Parallel | Johnnie |
| 1941 | That Hamilton Woman | Lord Horatio Nelson |
| 1940 | Rebecca (1940) | George Fortescu Maximillian 'Maxim' de Winter |
| 1939 | Clouds Over Europe (1939) (Q Planes) | Tony McVane |
| 1939 | Wuthering Heights (1939) | Heathcliff |
| 1938 | The Divorce of Lady X | Everard Logan |
| 1937 | Fire Over England | Michael Ingolby |
| 1936 | As You Like It: Globe Theatre | Orlando |
