Filmography
| Year | Title | Role |
| 1954 | World for Ransom | Gov. Sir Charles Coutts |
| 1952 | Limelight | Postant |
| 1948 | Julia Misbehaves | Col. Bruce "Bunny" Willowbrook |
| 1947 | The Two Mrs. Carrolls | Dr. Tuttle |
| 1946 | Terror by Night | Dr. John H. Watson |
| 1946 | Prelude to Murder | Dr. John H. Watson |
| 1945 | The Woman in Green | Doctor John Watson |
| 1945 | Pursuit to Algiers | Dr. John H. Watson |
| 1945 | The Corn Is Green (1979) | The Squire |
| 1945 | Sherlock Holmes and the House of Fear | Doctor John H. Watson |
| 1945 | Son of Lassie | Duke of Radling |
| 1944 | Gypsy Wildcat | High Sheriff |
| 1944 | The Pearl of Death | Doctor Watson |
| 1944 | The Scarlet Claw | Doctor Watson |
| 1944 | Frenchman's Creek | Lord Godolphin |
| 1943 | Lassie Come Home | Duke of Rudling |
| 1943 | Sherlock Holmes Faces Death | Doctor Watson |
| 1943 | Sherlock Holmes and the Spider Woman | Doctor Watson |
| 1943 | Sherlock Holmes in Washington | Doctor Watson |
| 1942 | Roxie Hart | E. Clay Benham |
| 1942 | This Above All | Ramsbottom |
| 1942 | Secret Weapon | Dr. John H. Watson |
| 1941 | Suspicion | Gordon Cochrane 'Beaky' Thwaite |
| 1940 | Rebecca (1940) | Major Giles Lacy |
| 1940 | The Blue Bird (1940) | Mr. Luxury |
| 1940 | Lillian Russell | William Gilbert |
| 1940 | Susan and God | Mr. Hutchins |
| 1939 | The Adventures of Sherlock Holmes | Dr. Watson |
| 1939 | The Rains Came | Lord Albert Esketh |
| 1936 | The Charge of the Light Brigade | Sir Benjamin Warrenton |
| 1935 | The Scarlet Pimpernel | The Prince of Wales |
| 1935 | Becky Sharp | Joseph Sedley |
| 1934 | Treasure Island | Squire Trelawney |
| 1934 | Stand Up and Cheer | Eustis Dinwiddle |
| 1934 | Coming-Out Party | Troon |
| 1934 | Murder in Trinidad | Bertram Lynch |
| 1933 | I Was a Spy | Scottie |
