Treehouse of Horror XXII is the third episode of the twenty-third season and twenty-second Halloween episode of the Animated Comedy Series The Simpsons.

The Episode is written by Harvey Fierstein (Opening), Bill Canterbury, John Swartzwelder (The Diving Bell and the Butterball), George Meyer, Jon Vitti (Dial D for Diddly), Carolyn Omine and Conan O'Brien (In the Na'Vi) and directed by Matthew Faughnan, Jim Reardon, Mark Kirkland and David Silverman and features guest voices from Aron Ralston, Jackie Mason, Don Rickles, Matthew Broderick, Robin Williams, Marty Feldman, Jim Carrey, Eric Idle, Terry Jones, Harvey Korman and Albert Brooks.


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