John Mark Galecki is an American actor. On television, he played Leonard Hofstadter on The Big Bang Theory (2007-2019) and David Healy in Roseanne and The Conners (2018-2019).
Text from Wikipedia, CC BY-SA 4.0
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Photos 3
Filmography 31
In Time
Hancock
Vanilla Sky
Bean
I Know What You Did Last Summer
National Lampoon's Christmas Vacation
Rings
A Dog's Journey
Bounce
Suicide Kings
CBGB
The Opposite of Sex
Happy Endings
Prancer
The Cleanse
A Night in the Life of Jimmy Reardon
Table for Three
Bookies
I'm Chevy Chase and You're Not
Chrystal
Playing Mona Lisa
Must See TV: An All Star Tribute to James Burrows
In Defense of a Married Man
Sudden Fury
Without Consent
Morgan's Ferry
Backfield in Motion
Murder at My Door
Murder Ordained
Unraveling the Mystery: A Big Bang Farewell
The Little Dog Laughed62 credits on file
Television 24
Family Guy
The Late Show with Stephen Colbert
American Dad!
Conan
The Big Bang Theory
The Late Late Show with Craig Ferguson
Entourage
The Ellen DeGeneres Show
My Name Is Earl
Batman Beyond
The Conners
Blossom
Lip Sync Battle
Hope & Faith
Roseanne
People's Choice Awards
Stars in the House
Entertainment Tonight
The Norm Show
LAX
Civil Wars
Hardball
American Dreamer
Blind FaithAwards 1
Connected to Johnny 6
About this person
John Mark Galecki is an American actor. On television, he played Leonard Hofstadter on The Big Bang Theory (2007-2019) and David Healy in Roseanne and The Conners (2018-2019). Galecki also appeared in the films Prancer (1989), National Lampoon's Christmas Vacation (1989), Suicide Kings (1997), I Know What You Did Last Summer (1997), Bookies (2003), In Time (2011), and Rings (2017).
Text from Wikipedia, CC BY-SA 4.0
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