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