Cast of The Big Bang Theory

Meet the talented cast of The Big Bang Theory. From main characters to supporting roles, discover the actors who bring this show to life.

Starring: Johnny Galecki as Leonard Hofstadter, Jim Parsons as Sheldon Cooper, Kaley Cuoco as Penny, Simon Helberg as Howard Wolowitz, Kunal Nayyar as Rajesh Koothrappali, Melissa Rauch as Bernadette Rostenkowski, Mayim Bialik as Amy Farrah Fowler