
Actor
Born April 30, 1975 in Bree, Belgium
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.

I'm Chevy Chase and You're Not
Self

The Little Dog Laughed
Alex

Stars in the House
Self

Unraveling the Mystery: A Big Bang Farewell
Self - Host

A Dog's Journey
Henry Montgomery

The Conners
David Healy

SciJinks
Self - Host

The Cleanse
Paul Berger

Rings
Gabriel Brown

Must See TV: An All Star Tribute to James Burrows
Self

The Late Show with Stephen Colbert
Self - Guest

Lip Sync Battle
Self

CBGB
Terry Ork

In Time
Borel

Conan
Self

The Talk
Self

Table for Three
Ted

Hancock
Jeremy

The Big Bang Theory
Leonard Hofstadter

My Name Is Earl
Scott

American Dad!
Arnie (voice)

Happy Endings
Miles (uncredited)

The Late Late Show with Craig Ferguson
Self

LAX
Leland Pressman

Entourage
Johnny Galecki

Chrystal
Barry

Hope & Faith
Jay

The Ellen DeGeneres Show
Self

Bookies
Jude

Vanilla Sky
Peter Brown

Morgan's Ferry
Darcy

Bounce
Seth

Playing Mona Lisa
Arthur

The Norm Show
Dale Stackhouse

Family Guy
Leonard Hofstadter (voice)

Batman Beyond
Knux (voice)

The Opposite of Sex
Jason Bock

I Know What You Did Last Summer
Max Neurick

Suicide Kings
Ira Reder

Bean
Stingo Wheelie

Murder at My Door
Teddy McNair

Without Consent
Marty

Sudden Fury
Daniel Hannigan

Billy
David MacGregor

Civil Wars
Greg Stolbach

Backfield in Motion
Tim Seavers

In Defense of a Married Man
Eric

American Dreamer
Danny Nash

Blossom
Jason

Blind Faith
John Marshall

National Lampoon's Christmas Vacation
Rusty Griswold

Prancer
Billy Quinn

Hardball

Roseanne
David Healy

A Night in the Life of Jimmy Reardon
Toby Reardon

Murder Ordained
Doug Rule

Entertainment Tonight
Self

People's Choice Awards
Self - Presenter