The Explosion Implosion

Cast

• 

  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

• 

  Dana L. Wilson

  Dr. Sanders

• 

  Michael Patrick McGill

  Police Officer

• 

  Christine Baranski

  Beverly Hofstadter