The Big Bang Theory

The Proton Resurgence (Season 6, Episode 22)

TV-PG

TV Episode | 21 min | Comedy, Romance

Bernadette and Howard offer to watch Raj's dog and live to regret it. Leonard and Sheldon hire their favorite childhood star to make an appearance.

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Cast	+ Add Cast
11 cast members

Name	Known for
Johnny Galecki Leonard Hofstadter Leonard Hofstadter See fewer	The Big Bang Theory (2007)
Jim Parsons Sheldon Cooper Sheldon Cooper See fewer	The Big Bang Theory (2007)
Kaley Cuoco Penny Penny See fewer	The Big Bang Theory (2007)
Simon Helberg Howard Wolowitz Howard Wolowitz See fewer	Florence Foster Jenkins (2016)
Kunal Nayyar Raj Koothrappali Raj Koothrappali See fewer	The Big Bang Theory (2007)
Melissa Rauch Bernadette Rostenkowski Bernadette Rostenkowski See fewer	The Big Bang Theory (2007)
Bob Newhart Arthur Jeffries Arthur Jeffries See fewer	Elf (2003)
Troy Winbush Paramedic Paramedic See fewer	National Treasure: Book of Secrets (2007)
Paul Michael Bair Employee (uncredited) Employee (uncredited) See fewer	Purgatory (XX)
Ian Reed Kesler Paramedic #1 (uncredited) Paramedic #1 (uncredited) See fewer	Sydney to the Max (2019)
Ashley Shewell Cafeteria Student (uncredited) Cafeteria Student (uncredited) See fewer	Westworld (2016)