Keith Carradine Guest Stars on BIG BANG THEORY

Dexter's Special Agent Frank Lundy has been cast as Kaley Cuoco's on screen father in the CBS comedy.

Keith Carradine has been scheduled to cameo in a November episode of the Big Bang Theory as Penny's father. Any fan of the series will tell you there is some obvious tension between Penny and her father as revealed when Leonard's psychologist mother, played by Christine Baranski, got Penny to open up about her father.

Keith Carradine is the brother of the late actor David Carradine known for his roles in Kung Fu and Kill Bill. The actor's recent roles were in the television series Dollhouse, Dexter, Deadwood, Numb3rs, as well as many more. His next role will be Sheriff Taggart in the upcoming summer movie Cowboys & Aliens.