Filmography
| Year | Title | Role |
| 2009 | Stan Helsing: A Parody | Kay |
| 2008 | Superhero Movie | Uncle Albert |
| 2008 | An American Carol | Grandpa/Osama bin Nielsen |
| 2006 | Scary Movie 4 | President Harris |
| 2003 | Scary Movie 3 | The President of the United States |
| 2002 | Men With Brooms | Gordon Cutter |
| 2001 | Kevin Of The North | Thornton |
| 2000 | 2001: A Space Travesty | Richard "Dick" Dix |
| 1998 | Harvey (1998) | Dr. Chumley |
| 1998 | Wrongfully Accused (1998) | Ryan Harrison |
| 1997 | Mr. Magoo | Mr. Quincy Magoo |
| 1995 | Dracula: Dead and Loving It | Count Dracula |
| 1993 | Surf Ninjas | Colonel Chi |
| 1991 | All I Want for Christmas | Santa |
| 1991 | The Naked Gun 2 1/2: The Smell of Fear | Det. Lt. Frank Drebin |
| 1988 | The Naked Gun (1988) | Lt. Frank Drebin |
| 1987 | Nuts | Allen Green |
| 1986 | Soul Man | Mr. Dunbar |
| 1985 | Blade in Hong Kong | Harry Ingersoll |
| 1982 | Creepshow | Richard Vickers ("Something To Tide You Over") |
| 1982 | Wrong Is Right | Mallory |
| 1980 | Airplane! | Doctor Rumack |
| 1980 | Prom Night (2008) | Mr. Hammond |
| 1977 | Day of the Animals | Paul Jenson |
| 1977 | Viva Knievel! | Stanley Millard |
| 1977 | Project: Kill | John Trevor |
| 1972 | The Poseidon Adventure | Captain Harrison |
| 1970 | Aquarians | Official |
| 1967 | The Reluctant Astronaut | Major Fred Gifford |
| 1965 | See How They Run (1964) | Elliott Green |
| 1965 | Harlow | Richard Manley |
| 1958 | The Sheepman | Col. Stephen Bedford/Johnny Bledsoe |
| 1957 | Tammy and the Bachelor | Peter Brent |
| 1956 | Forbidden Planet | Commander John J. Adams |
| 1956 | The Vagabond King | Thibault d'Aussigny |
| 1956 | The Opposite Sex | Steve Hilliard |
