Johnny Galecki

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Known For

Credits

Cast Credits

The Big Bang Theory (2007)
Starring as Leonard Leakey Hofstadter (216 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
Roseanne (1988)
Starring as David Healy