Johnny Galecki
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.
Notable Roles
Bean
I Know What You Did Last Summer
National Lampoon's Christmas Vacation
Hancock
The Opposite of Sex
Bookies
A Night in the Life of Jimmy Reardon
In Time
Morgan's Ferry
Playing Mona Lisa
CBGB
Murder at My Door
Vanilla Sky
Sudden Fury
Backfield in Motion
The Cleanse
Bounce