There are seven main characters on the beloved CBS sitcom "The Big Bang Theory" — so who's the worst, and who's the best?

The Big Bang Theory has cast Meagen Fay as Bernadette's mother. The Malcolm in the Middle actress will appear in the sitcom's December 6 episode, TV Guide reports. Casey Sander will also reappear as ...

Sheldon (Jim Parsons) and Penny (Kaley Cuoco) standing in the doorway of the apartment while Penny looks confused in The Big Bang Theory Image via CBS In the beginning was the Big Bang, followed by ...

In the beginning was the Big Bang, followed by drooling autotrophs, dinosaurs, pyramids, and, finally, The Big Bang Theory. The premise was simple: four geeks – two physicists, Leonard (Johnny Galecki ...