Johnny Galecki
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.
Bean
(Stingo Wheelie)
I Know What You Did Last Summer
(Max Neurick)
National Lampoon's Christmas Vacation
(Russell 'Rusty' Griswold)
Hancock
(Jeremy)
The Opposite of Sex
(Jason Bock)
Bookies
(Jude)
A Night in the Life of Jimmy Reardon
(Toby Reardon)
In Time
(Borel)
Morgan's Ferry
(Darcy)
Playing Mona Lisa
(Arthur)
CBGB
(Terry Ork)
Murder at My Door
(Teddy McNair)
Vanilla Sky
(Peter Brown)
Backfield in Motion
(Tim Seavers)
Sudden Fury
(Daniel Hannigan)
The Cleanse
(Paul Berger)
Bounce
(Seth)
Rings
(Gabriel Brown)
Murder Ordained
(Doug Rule)
Must See TV: An All Star Tribute to James Burrows
(Self)
Without Consent
(Marty)
Suicide Kings
(Ira Reder)
Prancer
(Billy Quinn)
Happy Endings
(Miles (uncredited))
Chrystal
(Barry)
In Defense of a Married Man
(Eric)
The Little Dog Laughed
(Alex)
A Dog's Journey
(Henry Montgomery)
Table for Three
(Ted)
American Dreamer
(Danny Nash)
Batman Beyond
(Knux (voice))
The Big Bang Theory
(Leonard Hofstadter)
American Dad!
(Arnie (voice))
Family Guy
(Leonard Hofstadter (voice))
Hope & Faith
(Jay)
My Name Is Earl
(Scott)
Roseanne
(David Healy)
Billy
(David MacGregor)
LAX
(Leland Pressman)
Blossom
(Jason)
Hardball
Civil Wars
(Greg Stolbach)
Lip Sync Battle
(Self)
The Late Late Show with Craig Ferguson
(Self)
Blind Faith
(John Marshall)
Boulevard of Broken Dreams
((archive footage))
SciJinks
(Himself - Host)
The Conners
(David Healy)
Entertainment Tonight
(Self)
Stars in the House
(Self)
Conan
(Self)