Casting "The Big Bang Theory" was probably pretty tricky, and it's hard to imagine the series suceeding without the main performers — specifically, Jim Parsons, Johnny Galecki, Kaley Cuoco ...

Jim Parsons nailed his genius but socially awkward character, Sheldon Cooper, from The Big Bang Theory, which is why the makers had a huge task of finding his younger version for the show's ...

Actor Jim Parsons found fame as Dr. Sheldon Cooper, the brilliant and quirky character on the CBS sitcom "The Big Bang Theory." The series was a hit for the network and ran for 12 seasons ...