The Big Bang Theory

The Guitarist Amplification (Season 3, Episode 7)

TV-PG

TV Episode | 20 min | Comedy, Romance

Sheldon is caught in the middle when Leonard and Penny argue about Penny's friend staying at her apartment.

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Cast	+ Add Cast
9 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)
Kevin Sussman Stuart Bloom Stuart Bloom See fewer	Burn After Reading (2008)
Carol Ann Susi Debbie Wolowitz (voice) Debbie Wolowitz (voice) See fewer	Cats & Dogs (2001)
Brian George Dr. V.M. Koothrappali Dr. V.M. Koothrappali See fewer	Batman: The Killing Joke (2016)
Alice Amter Mrs. Koothrappali Mrs. Koothrappali See fewer	The Big Bang Theory (2007)