
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





