Johnny Galecki
Acting
Born: April 30, 1975 (age 51) · Bree, Belgium
Highest Rated
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
The Big Bang Theory
2007
In Time
2011
Hancock
2008
Family Guy
1999
Vanilla Sky
2001
I Know What You Did Last Summer
1997
National Lampoon's Christmas Vacation
1989
Rings
2017
Bean
1997
American Dad!
2005
A Dog's Journey
2019
My Name Is Earl
2005
Photos (3)
Movies (28)
In Time
Borel
Vanilla Sky
Peter Brown
Hancock
Jeremy
I Know What You Did Last Summer
Max Neurick
National Lampoon's Christmas Vacation
Rusty Griswold
Bean
Stingo Wheelie
A Dog's Journey
Henry Montgomery
Rings
Gabriel Brown
Suicide Kings
Ira Reder
Bounce
Seth
Happy Endings
Miles (uncredited)
The Opposite of Sex
Jason Bock
The Cleanse
Paul Berger
Sudden Fury
Daniel Hannigan
CBGB
Terry Ork
Prancer
Billy Quinn
A Night in the Life of Jimmy Reardon
Toby Reardon
Murder Ordained
Doug Rule
Without Consent
Marty
Table for Three
Ted
Bookies
Jude
Chrystal
Barry
Morgan's Ferry
Darcy
In Defense of a Married Man
Eric
Backfield in Motion
Tim Seavers
Playing Mona Lisa
Arthur
Murder at My Door
Teddy McNair
The Little Dog Laughed
Alex
TV Shows (17)
Family Guy
Leonard Hofstadter (voice) · 1 eps
American Dad!
Arnie (voice) · 1 eps
Entourage
Johnny Galecki · 3 eps
The Big Bang Theory
Leonard Hofstadter · 279 eps
My Name Is Earl
Scott · 1 eps
Batman Beyond
Knux (voice) · 1 eps
Blossom
Jason · 1 eps
The Conners
David Healy · 4 eps
Hope & Faith
Jay · 3 eps
The Norm Show
Dale Stackhouse · 2 eps
LAX
Leland Pressman · 1 eps
Civil Wars
Greg Stolbach · 1 eps
Roseanne
David Healy · 92 eps
Hardball
1 eps
American Dreamer
Danny Nash · 17 eps
Blind Faith
John Marshall · 2 eps
Billy
David MacGregor · 13 eps
Self / Appearances (14)
The Late Show with Stephen Colbert
Self - Guest · 1 eps
Conan
Self · 1 eps
Conan
Self - Guest · 1 eps
The Late Late Show with Craig Ferguson
Self · 1 eps
The Talk
Self · 1 eps
The Ellen DeGeneres Show
Self · 1 eps
People's Choice Awards
Self - Presenter · 1 eps
Lip Sync Battle
Self · 1 eps
Stars in the House
Self · 1 eps
Entertainment Tonight
Self · 2 eps
I'm Chevy Chase and You're Not
Self
Must See TV: An All Star Tribute to James Burrows
Self
SciJinks
Self - Host · 8 eps
Unraveling the Mystery: A Big Bang Farewell
Self - Host