Johnny Galecki

Acting β€’ 61 Credits

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.

🎭 Acting Roles (30)

Ranked by Prestige & Popularity
The Big Bang Theory

The Big Bang Theory

2007 ⭐ 4.0
as Leonard Hofstadter
In Time

In Time

2011 ⭐ 3.5
as Borel
Hancock

Hancock

2008 ⭐ 3.2
as Jeremy
Family Guy

Family Guy

1999 ⭐ 3.7
as Leonard Hofstadter (voice)
Vanilla Sky

Vanilla Sky

2001 ⭐ 3.4
as Peter Brown
I Know What You Did Last Summer

I Know What You Did Last Summer

1997 ⭐ 3.0
as Max Neurick
National Lampoon's Christmas Vacation

National Lampoon's Christmas Vacation

1989 ⭐ 3.6
as Rusty Griswold
Bean

Bean

1997 ⭐ 3.2
as Stingo Wheelie
Rings

Rings

2017 ⭐ 2.5
as Gabriel Brown
American Dad!

American Dad!

2005 ⭐ 3.5
as Arnie (voice)
A Dog's Journey

A Dog's Journey

2019 ⭐ 4.0
as Henry Montgomery
My Name Is Earl

My Name Is Earl

2005 ⭐ 3.8
as Scott
Entourage

Entourage

2004 ⭐ 3.7
as Johnny Galecki
Batman Beyond

Batman Beyond

1999 ⭐ 4.1
as Knux (voice)
Bounce

Bounce

2000 ⭐ 2.9
as Seth
Roseanne

Roseanne

1988 ⭐ 3.4
as David Healy
The Late Show with Stephen Colbert

The Late Show with Stephen Colbert

2015 ⭐ 3.1
as Self - Guest
Suicide Kings

Suicide Kings

1997 ⭐ 3.3
as Ira Reder
Conan

Conan

2010 ⭐ 3.6
as Self - Guest
The Opposite of Sex

The Opposite of Sex

1998 ⭐ 3.1
as Jason Bock
CBGB

CBGB

2013 ⭐ 3.2
as Terry Ork
The Ellen DeGeneres Show

The Ellen DeGeneres Show

2003 ⭐ 2.8
as Self
The Conners

The Conners

2018 ⭐ 3.5
as David Healy
The Late Late Show with Craig Ferguson

The Late Late Show with Craig Ferguson

2005 ⭐ 3.5
as Self
Happy Endings

Happy Endings

2005 ⭐ 2.8
as Miles (uncredited)
Lip Sync Battle

Lip Sync Battle

2015 ⭐ 3.2
as Self
Prancer

Prancer

1989 ⭐ 3.1
as Billy Quinn
Blossom

Blossom

1990 ⭐ 3.1
as Jason
The Cleanse

The Cleanse

2018 ⭐ 2.5
as Paul Berger
A Night in the Life of Jimmy Reardon

A Night in the Life of Jimmy Reardon

1988 ⭐ 2.5
as Toby Reardon