The Proton Displacement

EPISODE:

Episode Info

When Sheldon's childhood hero, Professor Proton, seeks Leonard's help with an experiment, the slighted Sheldon goes nuclear and decides to get revenge by befriending another TV science guy, Bill Nye.

Cast

Kaley Cuoco
as Penny
Johnny Galecki
as Leonard
Jim Parsons
as Sheldon
Simon Helberg
as Howard Wolowitz
Kunal Nayyar
as Rajesh Koothrappali
Melissa Rauch
as Bernadette Rostenkowski
Mayim Bialik
as Amy Farrah Fowler
Bill Nye
as Himself
Bob Newhart
as Professor Proton
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The Proton Displacement Photos