John Mark Galecki é um ator norte-americano, mundialmente conhecido por representar Dr. Leonard Hofstadter na série The Big Bang Theory.
Henry Montgomery
Self
Rusty Griswold
Borel
Marty
Peter Brown
Ira Reder
Stingo Wheelie
Jeremy
Jude
Terry Ork
Jason Bock
Billy Quinn
Max Neurick
Arthur
Darcy
Seth
Barry
Miles (uncredited)
Tim Seavers
Leonard Hofstadter (voice)
Knux (voice)
David Healy
Self - Host
Self - Presenter
John Marshall
Greg Stolbach
Função desconhecida
Self (archive footage)
Jason
Leland Pressman
David MacGregor
Scott
Johnny Galecki
Jay
