The Proton Resurgence

When Sheldon and Leonard learn their favorite TV scientist is available to hire, they seek to do so. Howard and Bernadette are tasked with watching Raj's dog.

TV-14-DL
Season 6 | Episode 22

Cast

Jim Parsons

as Sheldon Cooper

Johnny Galecki

as Leonard Hofstadter

Kaley Cuoco

as Penny

Simon Helberg

as Howard Wolowitz

Kunal Nayyar

as Raj Koothrappali