Johnny Galecki
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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
Credits
In Time (2011)
as Borel
Hancock (2008)
as Jeremy
Vanilla Sky (2001)
as Peter Brown
I Know What You Did Last Summer (1997)
as Max Neurick
Bean (1997)
as Stingo Wheelie
National Lampoon's Christmas Vacation (1989)
as Rusty Griswold
Rings (2017)
as Gabriel Brown
A Dog's Journey (2019)
as Henry Montgomery
Suicide Kings (1997)
as Ira Reder
Bounce (2000)
as Seth
The Opposite of Sex (1998)
as Jason Bock
Happy Endings (2005)
as Miles (uncredited)
I'm Chevy Chase and You're Not (2025)
as Self
Must See TV: An All Star Tribute to James Burrows (2016)
as Self
CBGB (2013)
as Terry Ork
Prancer (1989)
as Billy Quinn
Sudden Fury (1993)
as Daniel Hannigan
A Night in the Life of Jimmy Reardon (1988)
as Toby Reardon
The Cleanse (2018)
as Paul Berger
Bookies (2003)
as Jude
Murder Ordained (1987)
as Doug Rule
Backfield in Motion (1991)
as Tim Seavers
Without Consent (1994)
as Marty
Chrystal (2004)
as Barry
Table for Three (2009)
as Ted
Playing Mona Lisa (2000)
as Arthur
Murder at My Door (1996)
as Teddy McNair
In Defense of a Married Man (1990)
as Eric
Unraveling the Mystery: A Big Bang Farewell (2019)
as Self - Host
Morgan's Ferry (2001)
as Darcy
The Little Dog Laughed (2020)
as Alex