Filmography
| Year | Title | Role |
| 1990 | Pretty Woman | James 'Jim' Morse |
| 1988 | Coming to America (1988) | Randolph Duke |
| 1988 | The Good Mother (1988) | Grandfather |
| 1987 | Amazon Women on the Moon | Mr. Gower |
| 1983 | Trading Places | Randolph Duke |
| 1979 | The Billion Dollar Threat | Mike Larson |
| 1977 | Oh, God! | Sam Raven |
| 1976 | The Boy in the Plastic Bubble | Dr. Gunther |
| 1975 | Adventures of the Queen | J.L. Dundeen |
| 1974 | The Missiles of October | Adlai Stevenson |
| 1972 | Cancel My Reservation | John Ed |
| 1971 | Something Evil | Harry Lincoln |
| 1968 | Rosemary's Baby | Dr. Abe Sapirstein |
| 1966 | The Professionals | Joe Grant |
| 1960 | Sunrise at Campobello | Franklin Delano Roosevelt |
| 1955 | The Court-Martial of Billy Mitchell | Congressman Frank R. Reid |
| 1945 | Delightfully Dangerous | Arthur Hale |
| 1945 | Lady on a Train | Jonathan Waring |
| 1943 | Stage Door Canteen | Self |
| 1942 | The Ghost of Frankenstein | Erik |
| 1941 | The Wolf Man (1941) | Col. Paul Montford |
| 1941 | Affectionately Yours | Owen Wright |
| 1941 | Footsteps in the Dark | Dr. R.L. Davis |
| 1940 | His Girl Friday | Bruce Baldwin |
| 1940 | Dance, Girl, Dance | Steve Adams |
| 1939 | Let Us Live | Police Lt. Everett |
| 1939 | Blind Alley | Dr. Shelby |
| 1938 | Trade Winds | Ben Blodgett |
| 1938 | Carefree | Stephen Arden |
| 1937 | The Awful Truth | Daniel "Dan" Leeson |
| 1935 | Air Hawks | Barry Eldon |
| 1935 | Hands Across the Table | Allen Macklyn |
| 1934 | Before Midnight (1934) | Actor |
| 1933 | Ace of Aces | Capt./Maj. Blake |
| 1933 | Picture Snatcher | J.R. "Al" McLean |
| 1933 | Destination Unknown | Stowaway |
| 1932 | Air Mail | Mike Miller |
| 1932 | Young America | Judge Blake |
| 1932 | Forbidden (1932) | Holland |
