Johnny Galecki
as
Leonard Hofstadter
Jim Parsons
as
Sheldon Cooper
Kaley Cuoco
as
Penny
Simon Helberg
as
Howard Wolowitz
Kunal Nayyar
as
Rajesh "Raj" Koothrappali
Bernadette
Amy Farrah Fowler
Former Cast
Sara Gilbert
as
Leslie Winkle
The Big Bang Theory Cast
Current Cast
Johnny Galecki
as
Leonard Hofstadter
Jim Parsons
as
Sheldon Cooper
Kaley Cuoco
as
Penny
Simon Helberg
as
Howard Wolowitz
Kunal Nayyar
as
Rajesh "Raj" Koothrappali
Bernadette
Amy Farrah Fowler
Former Cast
Sara Gilbert
as
Leslie Winkle
