The Big Bang Theory The Cooper-Hofstadter Polarization (Season 1, Episode 9)
TV-PG
TV Episode | 20 min | Comedy, Romance

Primary photo for The Cooper-Hofstadter Polarization

The Big Bang Theory

The Cooper-Hofstadter Polarization (Season 1, Episode 9)

TV-PG

TV Episode | 20 min | Comedy, Romance

Leonard and Sheldon's friendship is put to the test when Leonard wants to present a paper they co-authored at a physics convention, but Sheldon doesn't.

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Cast	+ Add Cast
7 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)
Talbott Lin Chinese Leonard Chinese Leonard See fewer	Jack Reacher: Never Go Back (2016)
Howard Chan Chinese Sheldon Chinese Sheldon See fewer	Kiss Kiss (2019)