Johnny Galecki

Johnny Galecki

Known for
Acting
Born
April 30, 1975 (age 51)
Birthplace
Bree, Belgium

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

Photos

Johnny Galecki photoJohnny Galecki photoJohnny Galecki photo

Filmography

—
Peep Show

Peep Show

TV · as Mark · 1 ep

2025
I'm Chevy Chase and You're Not poster

I'm Chevy Chase and You're Not

Movie · as Self

2020
The Little Dog Laughed poster

The Little Dog Laughed

Movie · as Alex

2020
Stars in the House poster

Stars in the House

TV · as Self · 1 ep

2019
A Dog's Journey poster

A Dog's Journey

Movie · as Henry Montgomery

2019
Unraveling the Mystery: A Big Bang Farewell poster

Unraveling the Mystery: A Big Bang Farewell

Movie · as Self - Host

2018
The Cleanse poster

The Cleanse

Movie · as Paul Berger

2018
SciJinks poster

SciJinks

TV · as Self - Host · 8 eps

2018
The Conners poster

The Conners

TV · as David Healy · 4 eps

2017
Rings poster

Rings

Movie · as Gabriel

2016
Must See TV: An All Star Tribute to James Burrows poster

Must See TV: An All Star Tribute to James Burrows

Movie · as Self

2015
Lip Sync Battle poster

Lip Sync Battle

TV · as Self · 1 ep

2015
The Late Show with Stephen Colbert poster

The Late Show with Stephen Colbert

TV · as Self - Guest · 1 ep

2013
CBGB poster

CBGB

Movie · as Terry Ork

2011
In Time poster

In Time

Movie · as Borel

2010
Conan poster

Conan

TV · as Self, Self - Guest · 1 ep

2010
The Talk poster

The Talk

TV · as Self · 1 ep

2009
Table for Three poster

Table for Three

Movie · as Ted

2008
Hancock poster

Hancock

Movie · as Jeremy

2007
The Big Bang Theory poster

The Big Bang Theory

TV · as Leonard Hofstadter · 279 eps

2007
Boulevard of Broken Dreams

Boulevard of Broken Dreams

TV · as Self (archive footage) · 1 ep

2005
Happy Endings poster

Happy Endings

Movie · as Miles (uncredited)

2005
American Dad! poster

American Dad!

TV · as Arnie (voice) · 1 ep

2005
My Name Is Earl poster

My Name Is Earl

TV · as Scott · 1 ep

2005
The Late Late Show with Craig Ferguson poster

The Late Late Show with Craig Ferguson

TV · as Self · 1 ep

2004
Chrystal poster

Chrystal

Movie · as Barry

2004
LAX poster

LAX

TV · as Leland Pressman · 1 ep

2004
Entourage poster

Entourage

TV · as Johnny Galecki · 3 eps

2003
Bookies poster

Bookies

Movie · as Jude

2003
Hope & Faith poster

Hope & Faith

TV · as Jay · 3 eps

2003
The Ellen DeGeneres Show poster

The Ellen DeGeneres Show

TV · as Self · 1 ep

2001
Morgan's Ferry poster

Morgan's Ferry

Movie · as Darcy

2001
Vanilla Sky poster

Vanilla Sky

Movie · as Peter Brown

2000
Playing Mona Lisa poster

Playing Mona Lisa

Movie · as Arthur

2000
Bounce poster

Bounce

Movie · as Seth

1999
Batman Beyond poster

Batman Beyond

TV · as Knux (voice) · 1 ep

1999
Family Guy poster

Family Guy

TV · as Leonard Hofstadter (voice) · 1 ep

1999
The Norm Show poster

The Norm Show

TV · as Dale Stackhouse · 2 eps

1998
The Opposite of Sex poster

The Opposite of Sex

Movie · as Jason Bock

1997
Bean poster

Bean

Movie · as Stingo Wheelie

1997
I Know What You Did Last Summer poster

I Know What You Did Last Summer

Movie · as Max Neurick

1997
Suicide Kings poster

Suicide Kings

Movie · as Ira Reder

1996
Murder at My Door poster

Murder at My Door

Movie · as Teddy McNair

1994
Without Consent poster

Without Consent

Movie · as Marty

1993
Sudden Fury poster

Sudden Fury

Movie · as Daniel Hannigan

1992
Billy poster

Billy

TV · as David MacGregor · 13 eps

1991
Backfield in Motion poster

Backfield in Motion

Movie · as Tim Seavers

1991
Civil Wars poster

Civil Wars

TV · as Greg Stolbach · 1 ep

1990
In Defense of a Married Man poster

In Defense of a Married Man

Movie · as Eric

1990
American Dreamer poster

American Dreamer

TV · as Danny Nash · 17 eps

1990
Blossom poster

Blossom

TV · as Jason · 1 ep

1990
Blind Faith poster

Blind Faith

TV · as John Marshall · 2 eps

1989
National Lampoon's Christmas Vacation poster

National Lampoon's Christmas Vacation

Movie · as Rusty Griswold

1989
Prancer poster

Prancer

Movie · as Billy Quinn

1989
Hardball poster

Hardball

TV · 1 ep

1988
A Night in the Life of Jimmy Reardon poster

A Night in the Life of Jimmy Reardon

Movie · as Toby Reardon

1988
Roseanne poster

Roseanne

TV · as David Healy · 92 eps

1987
Murder Ordained poster

Murder Ordained

Movie · as Doug Rule

1981
Entertainment Tonight poster

Entertainment Tonight

TV · as Self · 2 eps

1975
People's Choice Awards poster

People's Choice Awards

TV · as Self - Presenter · 1 ep