Johnny Galecki
Johnny Galecki is credited on 21 movies and 11 TV shows, best known by TMDB votes for The Big Bang Theory, In Time and Hancock.
Born April 30, 1975 in Bree, Belgium.
Filmography · 32 titles
US streaming apps shown for the 12 best-known titles, checked October 5, 2026. Tap any title for where it streams and what it costs.
The Big Bang Theory
2007 · TV show
On HBO Max and YouTube TV
In Time
2011 · Movie
On Prime Video and YouTube TV
Hancock
2008 · Movie
On Paramount+ and YouTube TV
Family Guy
1999 · TV show
On Hulu and fuboTV
Vanilla Sky
2001 · Movie
On Peacock and Paramount+
I Know What You Did Last Summer
1997 · Movie
On Netflix and Philo
National Lampoon's Christmas Vacation
1989 · Movie
Free with ads on Plex
Bean
1997 · Movie
Not on a US subscription app
American Dad!
2005 · TV show
On Hulu and fuboTV
Rings
2017 · Movie
On Prime Video and MGM+
A Dog's Journey
2019 · Movie
On Netflix
My Name Is Earl
2005 · TV show
On Hulu and Disney+
Batman Beyond
1999 · TV show
Entourage
2004 · TV show
Roseanne
1988 · TV show
Bounce
2000 · Movie
Suicide Kings
1997 · Movie
CBGB
2013 · Movie
The Conners
2018 · TV show
Prancer
1989 · Movie
Blossom
1990 · TV show
Happy Endings
2005 · Movie
The Cleanse
2018 · Movie
A Night in the Life of Jimmy Reardon
1988 · Movie
Table for Three
2009 · Movie
Bookies
2003 · Movie
The Norm Show
1999 · TV show
Hope & Faith
2003 · TV show
Chrystal
2004 · Movie
Playing Mona Lisa
2000 · Movie
In Defense of a Married Man
1990 · Movie
Sudden Fury
1993 · Movie
About Johnny Galecki
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.
Biography from TMDB, written by its community.