Kaley Cuoco (Penny)
Johnny Galecki (Leonard)
Jim Parsons (Sheldon)
Simon Helberg (Howard Wolowitz)
Kunal Nayyar (Rajesh Koothrappali)
Sara Gilbert (Leslie Winkle)
Bernadette Rostenkowski (Melissa Rauch)
Amy Farrah Fowler (Mayim Bialik)
Stuart (Kevin Sussman)
Barry Kripke (John Ross Bowie)
Mary Cooper (Laurie Metcalf)
Priya Koothrappali (Aarti Mann)
Beverly Hofstadter (Christine Baranski)
Missy Cooper (Courtney Henggeler)