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