The Big Bang Theory

The Collaboration Contamination

Series 11 - Episode 5 The Collaboration Contamination



Sheldon and Raj turn to Bernadette for advice about their jealousy when Amy and Howard decide to collaborate on a new project. Penny and Leonard learn some new ways to manage Sheldon's irksome behaviour from an unlikely source.

Cast & Crew

Leonard Hofstadter Johnny Galecki
Sheldon Cooper Jim Parsons
Penny Hofstadter Kaley Cuoco
Howard Wolowitz Simon Helberg
Raj Koothrappali Kunal Nayyar
Amy Farrah Fowler Mayim Bialik
Bernadette Rostenkowski Melissa Rauch
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