Rajesh Ramayan "Raj" Koothrappali, Ph.D. is a fictional character and one of the protagonists of the CBS television series The Big Bang Theory, portrayed by British-Indian actor Kunal Nayyar. He is on
Kunal Nayyar as Raj Koothrappali
Kunal Nayyar and Simon Helberg, the actors who play Raj and Howard Wolowitz, at PaleyFest