As a newbie on The Big Bang Theory, actor Kunal Nayyar found it difficult to be serious on set while filming his scenes which ...

Nayyar played the astrophysicist Rajesh "Raj" Koothrappali across the sitcom's full 12-season run on CBS. Kunal Nayyar's ...

Throughout the twelve seasons of The Big Bang Theory, the group of nerdy best friends of Leonard, Sheldon, Howard, and Raj ...

In The Big Bang Theory's tenth season, the episode "The Hot Tub Contamination" shows Sheldon telling Penny why he does this.