Big Bang Theory Cast Then and Now in 2018

The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady. The show is primarily centred on five characters living in Pasadena, California: Leonard Hofstadter, Sheldon Cooper, Penny, Howard Wolowitz and Raj Koothrappali.

Cast:

Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Melissa Rauch ... Bernadette Rostenkowski
Mayim Bialik ... Amy Farrah Fowler
Kevin Sussman ... Stuart Bloom / ...
Carol Ann Susi ... Debbie Wolowitz
John Ross Bowie ... Barry Kripke