Johnny Galecki

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

The Big Bang Theory

as Leonard Hofstadter

In Time

as Borel

Hancock

as Jeremy

Family Guy

as Leonard Hofstadter (voice)

Vanilla Sky

as Peter Brown

I Know What You Did Last Summer

as Max Neurick

Rings

as Gabriel Brown

National Lampoon's Christmas Vacation

as Russell 'Rusty' Griswold

Bean

as Stingo Wheelie

American Dad!

as Arnie (voice)