Actor
Ghostbusters: Afterlife
2021
as Dr. Egon Spengler (archive footage) (uncredited)
Year One
2009
as Adam
Walk Hard: The Dewey Cox Story
2007
as L'Chai'm
Knocked Up
2007
as Ben's Dad
The Last Kiss
2006
as Professor Bowler
Chicago Filmmakers on the Chicago River
2004
as Self
I'm with Lucy
2002
as Jack
Orange County
2002
as Don Durkett
As Good as It Gets
1997
as Dr. Bettes
Love Affair
1994
as Sheldon Blumenthal
Airheads
1994
as Chris Moore
Groundhog Day
1993
as Neurologist
Ghostbusters II
1989
as Dr. Egon Spengler
The Best of SCTV
1988
Stealing Home
1988
as Alan Appleby
Baby Boom
1987
as Steven Buchner
Ghostbusters
1984
as Egon Spengler
The Rodney Dangerfield Special: I Can't Take It No More
1983
as Self / Various
National Lampoon's Vacation
1983
as Car salesman (voice) (uncredited)
Spacehunter: Adventures in the Forbidden Zone
1983
as Voice (Uncredited)
Heavy Metal
1981
as Zeke (voice)
Stripes
1981
as Russell Ziskey
