Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | Rebekka | 1940 | Major Giles Lacy |
| Actor | Suspicion | 1941 | Gordon Cochrane 'Beaky' Thwaite |
| Actor | Parrasvalot | 1952 | Postant, an Impresario |
| Actor | Lassie Come Home | 1943 | Duke of Rudling |
| Actor | Terror by Night | 1946 | Dr. John H. Watson |
| Actor | Sherlock Holmes and the Voice of Terror | 1942 | Doctor Watson |
| Actor | Sherlock Holmes (1939) | Dr. Watson | |
| Actor | The Adventures of Sherlock Holmes | 1939 | Dr. Watson |
| Actor | The Hound of the Baskervilles | 1939 | Doctor Watson |
| Actor | Sherlock Holmes and the Secret Weapon | 1942 | Doctor Watson |
| Actor | The Blue Bird | 1940 | Mr. Luxury |
| Actor | The Woman in Green | 1945 | Dr. John Watson |
| Actor | Dressed to Kill | 1946 | Dr. John H. Watson |
| Actor | Sherlock Holmes Faces Death | 1943 | Doctor Watson |
| Actor | Sherlock Holmes in Washington | 1943 | Doctor Watson |
| Actor | The House of Fear | 1945 | Dr. John Watson |
| Actor | The Charge of the Light Brigade | 1936 | Sir Benjamin Warrenton |
| Actor | The Spider Woman | 1943 | Dr. John H. Watson |
| Actor | The Scarlet Claw | 1944 | Doctor Watson |
| Actor | The Pearl of Death | 1944 | Dr. John Watson |
| Actor | Son of Lassie | 1945 | Duke of Radling |
| Actor | Pursuit to Algiers | 1945 | Doctor Watson |
| Actor | The Scarlet Pimpernel | 1934 | The Prince of Wales |
| Actor | Treasure Island | 1934 | Squire Trelawney |
| Actor | The Two Mrs. Carrolls | 1947 | Dr. Tuttle |
| Actor | Suuria seikkailijoita | 1941 | Duncan MacDougall |
| Actor | Becky Sharp | 1935 | Joseph Sedley |