Acting

Johnny Galecki

Born April 30, 1975 (51)BelgiumBree, Belgium60 creditsIMDb

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

In Time2011 · as Borel
Rings2017 · as Gabriel Brown
Hancock2008 · as Jeremy
I Know What You Did Last Summer1997 · as Max Neurick
National Lampoon's Christmas Vacation1989 · as Rusty Griswold
Series
The Big Bang Theory2007 · as Leonard Hofstadter · 279 ep
A Dog's Journey2019 · as Henry Montgomery
Vanilla Sky2001 · as Peter Brown
Bounce2000 · as Seth
Suicide Kings1997 · as Ira Reder
Bean1997 · as Stingo Wheelie
The Cleanse2018 · as Paul Berger
Decade
Genre
Sort byPopularity
Release date
Series
Family Guy1999 · as Leonard Hofstadter (voice) · 1 ep
Series
American Dad!2005 · as Arnie (voice) · 1 ep
Series
Entourage2004 · as Johnny Galecki · 3 ep
Series
The Big Bang Theory2007 · as Leonard Hofstadter · 279 ep
Series
My Name Is Earl2005 · as Scott · 1 ep
Series
Batman Beyond1999 · as Knux (voice) · 1 ep
Series
The Conners2018 · as David Healy · 4 ep
Series
Blossom1990 · as Jason · 1 ep
Series
Hope & Faith2003 · as Jay · 3 ep
In Time2011 · as Borel
Series
LAX2004 · as Leland Pressman · 1 ep
Series
The Norm Show1999 · as Dale Stackhouse · 2 ep
Series
Civil Wars1991 · as Greg Stolbach · 1 ep
National Lampoon's Christmas Vacation1989 · as Rusty Griswold
Vanilla Sky2001 · as Peter Brown
Hancock2008 · as Jeremy
I Know What You Did Last Summer1997 · as Max Neurick
A Dog's Journey2019 · as Henry Montgomery
Series
Roseanne1988 · as David Healy · 92 ep
Series
Hardball1989 · Cast · 1 ep
Bean1997 · as Stingo Wheelie
Series
American Dreamer1990 · as Danny Nash · 17 ep
Rings2017 · as Gabriel Brown
The Opposite of Sex1998 · as Jason Bock
I'm Chevy Chase and You're Not2025 · as Self
Happy Endings2005 · as Miles (uncredited)
Bounce2000 · as Seth
Series
Billy1992 · as David MacGregor · 13 ep
Must See TV: An All Star Tribute to James Burrows2016 · as Self
Suicide Kings1997 · as Ira Reder
Series
Blind Faith1990 · as John Marshall · 2 ep
Prancer1989 · as Billy Quinn
Series
Peep Showas Mark · 1 ep
A Night in the Life of Jimmy Reardon1988 · as Toby Reardon
CBGB2013 · as Terry Ork
The Cleanse2018 · as Paul Berger