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.
★ 6.6 I'm Chevy Chase and You're Not 2025
Self ★ 8 Mes Autres Vies de Chien 2019
Henry Montgomery ★ 5 The Cleanse 2018
Paul Berger Serie ★ 7 The Conners 2018
David Healy ★ 5 Le Cercle : Rings 2017
Gabriel Brown Serie ★ 6.4 Lip Sync Battle 2015
Self Serie ★ 6.1 The Late Show with Stephen Colbert 2015
Self - Guest ★ 6.4 CBGB 2013
Terry Ork ★ 7 Time Out 2011
Borel Serie ★ 7.2 Conan 2010
Self ★ 4.6 Les Colocataires 2009
Ted ★ 6.4 Hancock 2008
Jeremy Serie ★ 7.9 The Big Bang Theory 2007
Leonard Hofstadter ★ 5.6 Happy Endings 2005
Miles (uncredited) Serie ★ 7 American Dad! 2005
Arnie (voice) Serie ★ 7.7 Earl 2005
Scott Serie ★ 6.8 The Late Late Show with Craig Ferguson 2005
Self ★ 5.6 Chrystal 2004
Barry Serie ★ 7.4 Entourage 2004
Johnny Galecki ★ 6.4 Bookies 2003
Jude Serie ★ 5.4 La Star de la famille 2003
Jay Serie ★ 5.6 The Ellen DeGeneres Show 2003
Self ★ 6.8 Vanilla Sky 2001
Peter Brown ★ 5.8 Un amour infini 2000
Seth Serie ★ 8.2 Batman - La relève 1999
Knux (voice) Serie ★ 7.4 Les Griffin 1999
Leonard Hofstadter (voice) Serie ★ 7.2 The Norm Show 1999
Dale Stackhouse ★ 6.2 Sexe et autres complications 1998
Jason Bock ★ 6.5 Bean 1997
Stingo Wheelie ★ 6 Souviens-toi… l'été dernier 1997
Max Neurick ★ 6.6 Suicide Kings 1997
Ira Reder Serie ★ 6.2 Blossom 1990
Jason ★ 7.2 Le Sapin a les boules 1989
Rusty Griswold ★ 6.1 Jessie et le petit renne du Père Noël 1989
Billy Quinn ★ 5 Jimmy Reardon 1988
Toby Reardon Serie ★ 6.8 Roseanne 1988
David Healy Serie ★ 4.3 Entertainment Tonight 1981
Self 
