Johnny Galecki Attends The Showtime Emmy Eve Nominees Celebration At Chateau Marmont In West Hollywood
(Source: Bauer Griffin)
From Bill Gates' Epic Cameo To Jerry O'Connell Playing Sheldon's Brother, 'The Big Bang Theory' Cast Spilled All The Tea At PaleyFest
Johnny Galecki is an American actor best known for his roles as David Healy in the television sitcom Roseanne and as Leonard Hofstadter in the CBS series The Big Bang Theory. Find more pictures, videos and information about Johnny Galecki here.