The Big Bang Theory S4E10

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The Big Bang Theory Season 4 Episode 10 : The Alien Parasite Hypothesis

Amy finds she has sexual feelings for Penny's ex, while Koothrappali and Wolowitz try to prove who would be the better superhero.

NameThe Big Bang Theory Season 4 : The Alien Parasite Hypothesis
Air DateDecember 9th, 2010
GenreComedy
NetworkCBS
Production CompaniesChuck Lorre Productions, Warner Bros. Television
DirectorMark Cendrowski
Guest StarsBrian Thomas Smith, Melissa Rauch, Mayim Bialik
Plot Keywordsnerd, geek, friends, scientist, science, sitcom
Kaley Cuoco
Kaley Cuoco
Penny
Johnny Galecki
Johnny Galecki
Leonard Hofstadter
Jim Parsons
Jim Parsons
Sheldon Cooper
Simon Helberg
Simon Helberg
Howard Wolowitz
Kunal Nayyar
Kunal Nayyar
Rajesh Koothrappali

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