| movie | John Candy: I Like Me (2025)As Self - Head Writer & Actor, SCTV (archive footage) | (Not seen) |
| movie | Ghostbusters: Afterlife (2021)As Dr. Egon Spengler (archive footage) (uncredited) | (Not seen) |
| tv | The Movies That Made Us (2019)As Dr. Egon Spengler (archive footage)(1 episode) | (Not seen) |
| movie | Year One (2009) (AKA "The Year One")As Adam | (Not seen) |
| movie | Walk Hard: The Dewey Cox Story (2007) (AKA "Walk Hard")As L'Chai'm | (Not seen) |
| movie | Knocked Up (2007)As Ben's Dad | (Not seen) |
| movie | The Last Kiss (2006)As Professor Bowler | (Not seen) |
| movie | Orange County (2002)As Don Durkett | (Not seen) |
| movie | High Fidelity (2000)As Rob’s Dad (Scene Deleted) | (Not seen) |
| movie | As Good as It Gets (1997) (AKA "Old Friends")As Dr. Bettes | (Not seen) |
| tv | The Daily Show (1996)As Self(1 episode) | (Not seen) |
| movie | Airheads (1994) (AKA "Hardrock hijack")As Chris Moore | (Not seen) |
| movie | Groundhog Day (1993)As Neurologist | (Not seen) |
| movie | Ghostbusters II (1989) (AKA "Ghostbusters 2")As Dr. Egon Spengler | (Not seen) |
| movie | Stealing Home (1988)As Alan Appleby | (Not seen) |
| movie | Baby Boom (1987)As Steven Buchner | (Not seen) |
| movie | Ghostbusters (1984)As Dr. Egon Spengler | (Not seen) |
| movie | National Lampoon's Vacation (1983)As Car salesman (voice) (uncredited) | (Not seen) |
| movie | Heavy Metal (1981)As Zeke (voice) | (Not seen) |
| movie | Stripes (1981)As Russell Ziskey | (Not seen) |