Johnny Galecki

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Known For

Credits

Cast Credits

The Late Show with Stephen Colbert (2015)
Guest starring as Johnny Galecki
The Late Late Show with James Corden (2015)
Guest starring as Johnny Galecki (2 episodes)
The Big Bang Theory (2007)
Starring as Leonard Leakey Hofstadter (222 episodes)
American Dad! (2005)
Guest starring as Arnie Squirrel
Family Guy (1999)
Guest starring as Leonard Hofstadter
The Daily Show with Jon Stewart (1996)
Guest starring as Johnny Galecki
Civil Wars (1991)
Guest starring as Greg Stolbach
Roseanne (1988)
Starring as David Healy