Johnny Galecki
Acting
Born April 30, 1975 · 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 · 40 titles
The Late Show with Stephen Colbert
Family Guy
American Dad!
The Late Late Show with Craig Ferguson
Conan
Batman Beyond
Entourage
The Big Bang Theory
The Talk
The Ellen DeGeneres Show
My Name Is Earl
Blossom
People's Choice Awards
In Time
Lip Sync Battle
Stars in the House
The Conners
Hope & Faith
National Lampoon's Christmas Vacation
Entertainment Tonight
Civil Wars
Hancock
Vanilla Sky
I Know What You Did Last Summer
The Norm Show
Bean
LAX
Roseanne
American Dreamer
Rings
A Dog's Journey
Hardball
I'm Chevy Chase and You're Not
The Opposite of Sex
Billy
Bounce
Happy Endings
Suicide Kings
Boulevard of Broken Dreams
Prancer