The Big Bang Theory

The Alien Parasite Hypothesis

Directed by Mark Cendrowski
TV-PG
S4 • E10    Dec 9, 2010    20m
7.6
Amy finds she has sexual feelings for Penny's ex, while Koothrappali and Wolowitz try to prove who would be the better superhero.

Where to Watch The Big Bang Theory - S4 • E10

Cast of The Alien Parasite Hypothesis

  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRajesh Koothrappali
  • Melissa RauchBernadette Rostenkowski
  • Mayim BialikAmy Farrah Fowler
  • Brian Thomas SmithZack Johnson
  • Mark CendrowskiDirector
  • Steven MolaroCo-Executive Producer / Story
  • Robinson GreenProduction Coordinator
  • Chuck LorreStory
  • Jim ReynoldsTeleplay
  • Steve HollandStory
  • Maria FerrariTeleplay
  • Lee AronsohnTeleplay

 

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