S03E23
The Lunar Excitation
May 24, 2010 · 20 min
7.9Cast
Johnny Galecki
Leonard Hofstadter
Jim Parsons
Sheldon Cooper
Kaley Cuoco
Penny
Simon Helberg
Howard Wolowitz
Kunal Nayyar
Rajesh Koothrappali
Mayim Bialik
Amy Farrah Fowler
Sara Gilbert
Leslie Winkle
Lauri Johnson
Mrs. Gunderson
Brian Thomas Smith
Zack Johnson