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Johnny Galecki

Johnny Galecki

Acting·1975·31 films

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.

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Filmography

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