Johnny Galecki
Known for ActingBorn 1975-04-30Bree, Belgium
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 Time
2011 · as Borel
Hancock
2008 · as Jeremy
Vanilla Sky
2001 · as Peter Brown
A Dog's Journey
2019 · as Henry Montgomery
I Know What You Did Last Summer
1997 · as Max Neurick
National Lampoon's Christmas Vacation
1989 · as Rusty Griswold
Bean
1997 · as Stingo Wheelie
Rings
2017 · as Gabriel Brown
Happy Endings
2005 · as Miles (uncredited)
Prancer
1989 · as Billy Quinn
I'm Chevy Chase and You're Not
2025 · as Self
Bounce
2000 · as Seth
The Opposite of Sex
1998 · as Jason Bock
Suicide Kings
1997 · as Ira Reder
Sudden Fury
1993 · as Daniel Hannigan
Bookies
2003 · as Jude
CBGB
2013 · as Terry Ork
Table for Three
2009 · as Ted