Harold Ramis
- Known for Directing
Acting credits
- 2026 You Had to Be There: How the Toronto Godspell Ignited the Comedy Revolution... as Self (archive footage)
- 2026 Marty, Life Is Short as Self (archive footage)
- 2009 Year One as Adam
- 2007 Walk Hard: The Dewey Cox Story as L'Chaim
- 2007 Knocked Up as Ben's Dad
- 2006 The Last Kiss as Professor Bowler
- 2002 Orange County as Don Durkett
- 1997 As Good as It Gets as Dr. Bettes
- 1994 Airheads as Chris Moore
- 1993 Groundhog Day as Neurologist
- 1989 Ghostbusters II as Dr. Egon Spengler
- 1987 Baby Boom as Steven Buchner
- 1984 Ghostbusters as Dr. Egon Spengler
- 1981 Heavy Metal as Zeke (voice)
- 1981 Stripes as Russell Ziskey
Crew credits
- 2009 Year One Screenplay
- 2009 Year One Director
- 2009 Year One Producer
- 2005 The Ice Harvest Director
- 2002 Analyze That Director
- 2002 Analyze That Screenplay
- 2000 Bedazzled Director
- 2000 Bedazzled Screenplay
- 2000 Bedazzled Producer
- 1999 Analyze This Director
- 1999 Analyze This Screenplay
- 1996 Multiplicity Producer
- 1996 Multiplicity Director
- 1993 Groundhog Day Director
- 1993 Groundhog Day Producer
- 1993 Groundhog Day Screenplay
- 1989 Ghostbusters II Screenplay
- 1986 Back to School Screenplay
- 1984 Ghostbusters Screenplay
- 1983 National Lampoon's Vacation Director
- 1981 Stripes Screenplay
- 1980 Caddyshack Director
- 1980 Caddyshack Writer
- 1979 Meatballs Writer
- 1978 Animal House Writer