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The Big Bang Theory: The Alien Parasite Hypothesis
A chance encounter with Zack, one of Penny's ex-boyfriends triggers an emotional response in Amy. Howard and Raj compete to decide who is a better superhero.


7.3/10 (22 Votes cast)

Episode Info


Episode number: 4x10
Production Number: 3X6660
Airdate: Thursday December 09th, 2010


Alternate Airdates:

UK (E4) Jan 06, 2011
BR (Warner) Feb 01, 2011
Guest Stars
Brian Thomas Smith (4)Brian Thomas Smith (4)
As Zack
Recurring
Main Cast
Johnny GaleckiJohnny Galecki
As Leonard Leakey Hofstadter
Jim ParsonsJim Parsons
As Sheldon Lee Cooper
Kaley CuocoKaley Cuoco
As Penny
Simon HelbergSimon Helberg
As Howard Joel Wolowitz
Kunal NayyarKunal Nayyar
As Rajesh Ramayan Koothrappali
Mayim BialikMayim Bialik
As Amy Farrah Fowler
Melissa RauchMelissa Rauch
As Bernadette Marianne Rostenkowski

Recap


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Episode Quotes
Amy: Did you know that the iconic Valentine's heart shape is not actually based on the shape of the human heart but rather on the shape of the buttocks of a female bending over?
Penny: So I spent seventh grade dotting my I's with little asses?
Amy: (nods yes)
Penny: Cool.

Sheldon: What were the symptoms?
Amy: Elevated heart rate, moist palms, dry mouth, and localized vascular throbbing.
Sheldon: Localized to what region?
Amy: Ears and genitalia.
Sheldon: Interesting, not body parts that usually team up.



Other Episode Crew

• CreatorChuck Lorre  |  Bill Prady
• Executive ProducerChuck Lorre  |  Lee Aronsohn  |  Bill Prady
• Co-Executive ProducerEric Kaplan  |  Steven Molaro  |  David Goetsch
• Supervising ProducerJim Reynolds  |  Peter Chakos
• ProducerFaye Oshima Belyeu  |  Steven Molaro
• Co-ProducerKristy Cecil  |  Maria Ferrari  |  Mary T. Quigley  |  Kelly Lee
• Consulting ProducerEddie Gorodetsky
• Associate ProducerRyan Berdan
• Production DesignerJohn Shaffner
• EditorPeter Chakos
• CastingNikki Valko  |  Ken Miller (2)
• Unit Production ManagerKelly Lee
• First Assistant DirectorAnthony Rich
• Second Assistant DirectorChris Klausen
• Costume DesignerMary T. Quigley
• HairstylistFaye Woods
• Set DecoratorAnn Shea (1)
• Property MasterScott L. London
• Production Sound MixerBruce Peters
• Production CoordinatorRobinson Green
• Re-Recording MixerCharlie McDaniel, III  |  Bob La Masney
• Director of PhotographySteven V. Silver
• Post Production CoordinatorMeghan Certo
• Coordinating ProducerJessica Ambrosetti
• Executive ConsultantDon Foster (1)
• Associate DirectorHoward Murray
• Main Title ThemeBarenaked Ladies
• Casting AssociateTara Treacy
• Makeup ArtistPeggy Nichols
• Science ConsultantDavid Saltzberg Ph.D.
 
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