7Acting
Johnny Galecki
- Born
- 1975-04-30
- Birthplace
- Bree, Belgium
Biography
Johnny Galecki is a Belgian-born American actor, best known for his roles as David Healy in Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in The Big Bang Theory.
Known For
Filmography
60 titles · Newest first · Cast and crew credits
I'm Chevy Chase and You're Not
2025 · Movie
Self
Stars in the House
2020 · TV Show
Self
The Little Dog Laughed
2020 · Movie
Alex
A Dog's Journey
2019 · Movie
Henry Montgomery
Unraveling the Mystery: A Big Bang Farewell
2019 · Movie
Self - Host
SciJinks
2018 · TV Show
Self - Host · Executive Producer
The Cleanse
2018 · Movie
Paul Berger · Producer
The Conners
2018 · TV Show
David Healy
Rings
2017 · Movie
Gabriel Brown
Must See TV: An All Star Tribute to James Burrows
2016 · Movie
Self
Lip Sync Battle
2015 · TV Show
Self
The Late Show with Stephen Colbert
2015 · TV Show
Self - Guest
CBGB
2013 · Movie
Terry Ork
In Time
2011 · Movie
Borel
Conan
2010 · TV Show
Self · Self - Guest
The Talk
2010 · TV Show
Self
Table for Three
2009 · Movie
Ted
Hancock
2008 · Movie
Jeremy
Boulevard of Broken Dreams
2007 · TV Show
Self (archive footage)
The Big Bang Theory
2007 · TV Show
Leonard Hofstadter
American Dad!
2005 · TV Show
Arnie (voice)
Happy Endings
2005 · Movie
Miles (uncredited)
My Name Is Earl
2005 · TV Show
Scott
The Late Late Show with Craig Ferguson
2005 · TV Show
Self
Chrystal
2004 · Movie
Barry
Entourage
2004 · TV Show
Johnny Galecki
LAX
2004 · TV Show
Leland Pressman
Bookies
2003 · Movie
Jude
Hope & Faith
2003 · TV Show
Jay
The Ellen DeGeneres Show
2003 · TV Show
Self
Morgan's Ferry
2001 · Movie
Darcy
Vanilla Sky
2001 · Movie
Peter Brown
Bounce
2000 · Movie
Seth
Playing Mona Lisa
2000 · Movie
Arthur
Batman Beyond
1999 · TV Show
Knux (voice)
Family Guy
1999 · TV Show
Leonard Hofstadter (voice)
The Norm Show
1999 · TV Show
Dale Stackhouse
The Opposite of Sex
1998 · Movie
Jason Bock
Bean
1997 · Movie
Stingo Wheelie
I Know What You Did Last Summer
1997 · Movie
Max Neurick
Suicide Kings
1997 · Movie
Ira Reder
Murder at My Door
1996 · Movie
Teddy McNair
Without Consent
1994 · Movie
Marty
Sudden Fury
1993 · Movie
Daniel Hannigan
Billy
1992 · TV Show
David MacGregor
Backfield in Motion
1991 · Movie
Tim Seavers
Civil Wars
1991 · TV Show
Greg Stolbach
American Dreamer
1990 · TV Show
Danny Nash
Blind Faith
1990 · TV Show
John Marshall
Blossom
1990 · TV Show
Jason
In Defense of a Married Man
1990 · Movie
Eric
Hardball
1989 · TV Show
Cast
National Lampoon's Christmas Vacation
1989 · Movie
Rusty Griswold
Prancer
1989 · Movie
Billy Quinn
A Night in the Life of Jimmy Reardon
1988 · Movie
Toby Reardon
Roseanne
1988 · TV Show
David Healy
Murder Ordained
1987 · Movie
Doug Rule
Entertainment Tonight
1981 · TV Show
Self
People's Choice Awards
1975 · TV Show
Self - Presenter
Peep Show
Date unknown · TV Show
Mark