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