Johnny Galecki

(Leonard Hofstadter)

Jim Parsons

(Sheldon Cooper)

Kaley Cuoco

(Penny)

Simon Helberg

(Howard Wolowitz)

Kunal Nayyar

(Raj Koothrappali)

Mayim Bialik

(Amy Farrah Fowler)

Melissa Rauch

(Bernadette Rostenkowski)

Kevin Sussman

(Stuart)

Christine Baranski

(Dr. Beverly Hofstadter)

John Ross Bowie

(Barry Kripke)

Sara Gilbert

(Leslie Winkle)

Wil Wheaton

(Wil Wheaton)

Adam West

(Adam West)