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