Kaley Cuoco and Johnny Galecki starred in "The Big Bang Theory" for 12 seasons. ... the sitcom tells the story of young parents Georgie Cooper — Sheldon’s older brother — and Mandy McAllister.

Johnny Galecki wasn’t content to wait on an acting career. Born in Bree, Belgium, on April 30, 1975 to U.S. Air Force officer Richard Galecki and wife Mary Lou, the family moved to Chicago when ...

The Big Bang Theory never really comes to an end and former stars of the show, Kaley Cuoco and Johnny Galecki, are back together again to remind us of that. Cuoco, who starred as Penny, and ...

Johnny Galecki, who played Leonard on CBS's smash hit sitcom The Big Bang Theory, once had an idea for a spin-off that would have been shot in a different way.