The Big Bang Theory

The Luminous Fish Effect (Season 1, Episode 4)

TV-PG

TV Episode | 21 min | Comedy, Romance

Sheldon's mother is called to intervene when he delves into numerous obsessions after being fired for being disrespectful to his new boss.

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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)
Laurie Metcalf Mary Cooper Mary Cooper See fewer	Lady Bird (2017)
Mark Harelik Dr. Eric Gablehauser Dr. Eric Gablehauser See fewer	42 (2013)
Sierra Edwards Summer Summer See fewer	Joey (2004)
Wendy H. Meier Cafeteria Patron (uncredited) Cafeteria Patron (uncredited) See fewer	Boston Legal (2004)