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Johnny Galecki

Johnny Galecki

Born 1975-04-30 (age 51) Bree, Belgium
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Biography

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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Johnny Galecki Johnny Galecki Johnny Galecki

Known For

In Time
In Time

2011

as Borel

Vanilla Sky
Vanilla Sky

2001

as Peter Brown

Hancock
Hancock

2008

as Jeremy

I Know What You Did Last Summer
I Know What You Did Last Summer

1997

as Max Neurick

National Lampoon's Christmas Vacation
National Lampoon's Christmas Vacation

1989

as Rusty Griswold

Bean
Bean

1997

as Stingo Wheelie

A Dog's Journey
A Dog's Journey

2019

as Henry Montgomery

Rings
Rings

2017

as Gabriel Brown

Suicide Kings
Suicide Kings

1997

as Ira Reder

Bounce
Bounce

2000

as Seth

The Opposite of Sex
The Opposite of Sex

1998

as Jason Bock

Happy Endings
Happy Endings

2005

as Miles (uncredited)

I'm Chevy Chase and You're Not
I'm Chevy Chase and You're Not

2025

as Self

Must See TV: An All Star Tribute to James Burrows
Must See TV: An All Star Tribute to James Burrows

2016

as Self

CBGB
CBGB

2013

as Terry Ork

Prancer
Prancer

1989

as Billy Quinn

Sudden Fury
Sudden Fury

1993

as Daniel Hannigan

The Cleanse
The Cleanse

2018

as Paul Berger

A Night in the Life of Jimmy Reardon
A Night in the Life of Jimmy Reardon

1988

as Toby Reardon

Without Consent
Without Consent

1994

as Marty