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