The Big Bang Theory became extremely popular, lasting multiple seasons and spawning spin-offs. The stars of the original show ...

It's hard to imagine Johnny Galecki playing anyone but Leonard Hofstadter in "The Big Bang Theory," but the co-creators ...

The actor, who said he was shocked by how the ending was announced, mentioned he wished Jim Parsons had sat down with the cast to talk before announcing his departure. Fortunately, Johnny Galecki ...

The Big Bang Theory started out with five main cast members before adding several more, one of whom was originally meant to ...

Jim Parsons (who played Sheldon Cooper ... Instead of following "The Big Bang Theory" with new projects like his castmates, Johnny Galecki (who played Leonard Hofstadter) hasn't appeared ...

especially those of Sheldon Cooper (Jim Parsons). Fans of The Big Bang Theory got to know Sheldon Cooper, Leonard Hofstadter (Johnny Galecki), Howard Wolowitz (Simon Helberg), Rajesh Koothrappali ...

One of the stars of The Big Bang Theory passed on the show five times before ultimately relenting and joining the series.

However, before the show debuted, the creators had planned for Sheldon Cooper to be portrayed by Johnny Galecki. In The Big Bang Theory, Sheldon Cooper was played by Jim Parsons. A role that fit ...

Max and Warner Bros. Unscripted Television announced Monday that they are launching "The Official Big Bang Theory Podcast" on ...