| movie | Superintelligence (2020)As KITT (voice) | (Not seen) |
| movie | "Comedy Central Roasts" Comedy Central Roast of David Hasselhoff (2010) (AKA "Comedy Central Roast of David Hasselhoff")As K.I.T.T. (voice) | (Not seen) |
| movie | Blades of Glory (2007)As Commissioner Ebbers | (Not seen) |
| movie | The Benchwarmers (2006) | (Not seen) |
| tv | Grey's Anatomy (2005)As Craig Thomas(5 episodes) | (Not seen) |
| tv | Boston Legal (2004)As Milton Brody(1 episode) | (Not seen) |
| tv | Kim Possible (2002)As Robot Pilot (voice)(1 episode) | (Not seen) |
| tv | Scrubs (2001)As Dr. Douglas(1 episode) | (Not seen) |
| movie | Knight Rider 2000 (1991) | (Not seen) |
| tv | The Simpsons (1989)As KITT (voice)(2 episodes) | (Not seen) |
| movie | Her Alibi (1989)As Sam | (Not seen) |
| movie | Blind Date (1987) (AKA "Blake Edwards' Blind Date")As Judge Harold Bedford | (Not seen) |
| movie | Reds (1981)As Julius Gerber | (Not seen) |
| movie | The Blue Lagoon (1980)As Arthur Lestrange | (Not seen) |
| movie | Oh, God! (1977)As George Summers | (Not seen) |
| movie | Black Sunday (1977)As Pugh | (Not seen) |
| movie | The Parallax View (1974)As Austin Tucker | (Not seen) |
| movie | 1776 (1972)As John Adams | (Not seen) |
| movie | Marlowe (1969)As Mr. Cromwell | (Not seen) |
| movie | Two for the Road (1967)As Howard Manchester | (Not seen) |
| movie | The President's Analyst (1967)As Wynn Quantrill | (Not seen) |
| movie | The Graduate (1967)As Mr. Braddock | (Not seen) |
| movie | A Thousand Clowns (1965)As Albert Amundsen | (Not seen) |