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.
1999 • TV
2005 • TV
2005 • TV
2010 • TV
2011 • Movie
2008 • Movie
as Borel
as Jeremy
as Doug Rule
as Seth
as Peter Brown
as Rusty Griswold
as Stingo Wheelie
as Terry Ork
as Daniel Hannigan
as Max Neurick
as Alex
as Billy Quinn
as Self
as Miles (uncredited)
as Henry Montgomery
as Barry
as Gabriel Brown
as Paul Berger
as Arthur
as Self
Producer
as Leonard Hofstadter (voice)
1 episodes
as Arnie (voice)
1 episodes
as Self
1 episodes
as Self
1 episodes
as Leonard Hofstadter
279 episodes
as Johnny Galecki
3 episodes
as Scott
1 episodes
as Knux (voice)
1 episodes
as David Healy
4 episodes
as Self - Presenter
1 episodes
as Self
1 episodes
as Self
1 episodes
as Jason
1 episodes
as Jay
3 episodes
as Self
2 episodes
as Dale Stackhouse
2 episodes
as Leland Pressman
1 episodes
as Greg Stolbach
1 episodes
1 episodes
as David Healy
92 episodes
Executive Producer
