Johnny Galecki
Acting
🎂 1975-04-30
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.
Cast credits(53)
Leonard Hofstadter (voice)
1999
Arnie (voice)
2005
Leonard Hofstadter
2007
Self
2010
Johnny Galecki
2004
Self
2005
Knux (voice)
1999
Scott
2005
Jason
1990
Borel
2011
Self
2015
David Healy
2018
Max Neurick
1997
Jeremy
2008
Self
2020
Peter Brown
2001
Stingo Wheelie
1997
Russell 'Rusty' Griswold
1989
Jay
2003
Gabriel Brown
2017
Self
1981
David Healy
1988
Dale Stackhouse
1999
Leland Pressman
2004
Greg Stolbach
1991
Henry Montgomery
2019
1989
Seth
2000
Jason Bock
1998
Terry Ork
2013
Danny Nash
1990
Self
2016
Ira Reder
1997
Miles (uncredited)
2005
Arthur
2000
Jude
2003
Doug Rule
1987
Eric
1990
Toby Reardon
1988
Teddy McNair
1996
Paul Berger
2018
Ted
2009
Barry
2004
Daniel Hannigan
1993
David MacGregor
1992
Marty
1994
Billy Quinn
1989
John Marshall
1990
(archive footage)
2007
Himself - Host
2018
Alex
2020
Darcy
2001
Tim Seavers
1991