Johnny Galecki
Acting
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.
TV Shows(27)
Stars in the House
Self
2020
The Conners
David Healy
2018
SciJinks
Self - Host
2018
The Late Show with Stephen Colbert
Self - Guest
2015
Lip Sync Battle
Self
2015
Conan
Self
2010
The Big Bang Theory
Leonard Hofstadter
2007
Boulevard of Broken Dreams
Self (archive footage)
2007
My Name Is Earl
Scott
2005
American Dad!
Arnie (voice)
2005
The Late Late Show with Craig Ferguson
Self
2005
LAX
Leland Pressman
2004
Entourage
Johnny Galecki
2004
Hope & Faith
Jay
2003
The Norm Show
Dale Stackhouse
1999
Family Guy
Leonard Hofstadter (voice)
1999
Batman Beyond
Knux (voice)
1999
Billy
David MacGregor
1992
Civil Wars
Greg Stolbach
1991
American Dreamer
Danny Nash
1990
Blossom
Jason
1990
Blind Faith
John Marshall
1990
Hardball
1989
Roseanne
David Healy
1988
Entertainment Tonight
Self
1981
People's Choice Awards
Self - Presenter
1975
Peep Show
Mark
Movies(31)
I'm Chevy Chase and You're Not
Self
2025
The Little Dog Laughed
Alex
2020
Unraveling The Mystery: A Big Bang Farewell
Self - Host
2019
A Dog's Journey
Henry Montgomery
2019
The Cleanse
Paul Berger
2018
Rings
Gabriel Brown
2017
Must See TV: An All Star Tribute to James Burrows
Self
2016
CBGB
Terry Ork
2013
In Time
Borel
2011
Table for Three
Ted
2009
Hancock
Jeremy
2008
Happy Endings
Miles (uncredited)
2005
Chrystal
Barry
2004
Bookies
Jude
2003
Vanilla Sky
Peter Brown
2001
Morgan's Ferry
Darcy
2001
Bounce
Seth
2000
Playing Mona Lisa
Arthur
2000
The Opposite of Sex
Jason Bock
1998
I Know What You Did Last Summer
Max Neurick
1997
Suicide Kings
Ira Reder
1997
Bean
Stingo Wheelie
1997
Murder at My Door
Teddy McNair
1996
Without Consent
Marty
1994
Sudden Fury
Daniel Hannigan
1993
Backfield in Motion
Tim Seavers
1991
In Defense of a Married Man
Eric
1990
National Lampoon's Christmas Vacation
Rusty Griswold
1989
Prancer
Billy Quinn
1989
A Night in the Life of Jimmy Reardon
Toby Reardon
1988
Murder Ordained
Doug Rule
1987