The Big Bang Theory

The Lunar Excitation (Season 3, Episode 23)

TV-PG

TV Episode | 20 min | Comedy, Romance

Penny has a night of angry, drunken sex with Leonard, much to his confusion. Meanwhile, Howard and Raj search for Sheldon's perfect match online.

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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)
Sara Gilbert Leslie Winkle Leslie Winkle See fewer	Poison Ivy (1992)
Mayim Bialik Amy Farrah Fowler Amy Farrah Fowler See fewer	Beaches (1988)
Brian Thomas Smith Zack Johnson Zack Johnson See fewer	The Big Bang Theory (2007)
Lauri Johnson Mrs. Gunderson Mrs. Gunderson See fewer	Mom (2013)