Casting (30)
Johnny Galecki
Leonard Hofstadter
Jim Parsons
Sheldon Cooper
Kaley Cuoco
Penny
Simon Helberg
Howard Wolowitz
Kunal Nayyar
Rajesh Koothrappali
Melissa Rauch
Bernadette Rostenkowski
Mayim Bialik
Amy Farrah Fowler
Kevin Sussman
Stuart Bloom
Carol Ann Susi
Debbie Wolowitz (voice)
John Ross Bowie
Barry Kripke
Laura Spencer
Emily Sweeney
Wil Wheaton
Wil Wheaton
Brian George
V.M. Koothrappali
Christine Baranski
Beverly Hofstadter
Brian Posehn
Bert Kibbler
Laurie Metcalf
Mary Cooper
Joshua Malina
President Siebert
Aarti Mann
Priya Koothrappali
Brian Thomas Smith
Zack Johnson
Pamela Adlon
Halley Wolowitz (voice)
Sara Gilbert
Leslie Winkle
Rati Gupta
Anu
Kate Micucci
Lucy
Lauren Lapkus
Denise
Stephen Hawking
Stephen Hawking
Dean Norris
Richard Williams
Casey Sander
Mike Rostenkowski
Michael J. Massimino
Michael J. Massimino
Regina King
Janine Davis
Bob Newhart
Arthur Jeffries