Johnny Galecki

(Leonard)

Jim Parsons

(Sheldon)

Kaley Cuoco-Sweeting

(Penny)

Simon Helberg

(Wolowitz)

Kunal Nayyar

(Koothrappali)

Mayim Bialik

(Amy)

Melissa Rauch

(Bernadette)

Laura Spencer

(Emily Sweeney)

Ed Lieberman

(Man)