
Johnny Galecki
Known For
Acting
Born
1975-04-30 in 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.
Most Known For

Family Guy
as Leonard Hofstadter (voice)

American Dad!
as Arnie (voice)

Conan
as Self

The Big Bang Theory
as Leonard Hofstadter

The Late Late Show with Craig Ferguson
as Self

Entourage
as Johnny Galecki

My Name Is Earl
as Scott

Batman Beyond
as Knux (voice)

The Conners
as David Healy

Lip Sync Battle
as Self

Blossom
as Jason

In Time
as Borel

Stars in the House
as Self

The Norm Show
as Dale Stackhouse

Hancock
as Jeremy

People's Choice Awards
as Self - Presenter

Hope & Faith
as Jay

National Lampoon's Christmas Vacation
as Rusty Griswold

I Know What You Did Last Summer
as Max Neurick

Civil Wars
as Greg Stolbach