The Simpsons (1989– )
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Treehouse of Horror XX 

Lisa becomes livid with Miss Hoover, and in a series of homages to classic Hitchcock sets out for deadly revenge. Next, Krusty's latest fast-food sandwich transforms news anchor Kent ... See full summary »


Mike B. Anderson (as Mike Beheaded Anderson 2), Matthew Schofield (as Manic Matthew Schofield) | 1 more credit »


Matt Groening (created by) (as Bat Groening), James L. Brooks (developed by) (as James L. 'I'm Thinking of You Naked' Brooks) | 3 more credits »




Episode complete credited cast:
Dan Castellaneta ... Homer Simpson / Count Dracula / Wolfman / Groundskeeper Willie / Krusty / Squeaky Voiced Teen / Mr. Teeny / Barney Gumble / Grampa Simpson / Kodos (voice) (as Wolfdan Castellaneta)
Julie Kavner ... Marge Simpson / Selma Bouvier (voice) (as Drooly Kavner)
Nancy Cartwright ... Bart Simpson / Kearney / Ralph Wiggum / Todd Flanders (voice) (as Necro-Fancy Nancy)
Yeardley Smith ... Lisa Simpson (voice) (as Hoa)
Hank Azaria ... Moe Szyslak / Carl Carlson / Apu / Window Pane Man / Eye-patch Man (voice) (as Yank My Area)
Harry Shearer ... Frankenstein's Monster / Principal Skinner / Kent Brockman / Lenny Leonard / Dr. Hibbert / Rainier Wolfcastle / Reverend Lovejoy / Kang (voice)
Marcia Wallace ... Edna Krabappel (voice) (as Macabre Marcia Wallace)
Pamela Hayden ... Jimbo Jones / Dracula's Wife / Rod Flanders (voice) (as 'The Last Milhouse on the Left')
Tress MacNeille ... Dolph / Agnes Skinner / Mrs Muntz / The Mummy's Wife (voice) (as Terror MacNihilist)
Maggie Roswell ... Wolfman's Wife / Miss Hoover / Helen Lovejoy (voice) (as Maggie 'LAlien' Roswell)
Karl Wiedergott Karl Wiedergott ... Zombie Nurse / Sergeant (voice) (as Gnarl Killerbot)


Lisa becomes livid with Miss Hoover, and in a series of homages to classic Hitchcock sets out for deadly revenge. Next, Krusty's latest fast-food sandwich transforms news anchor Kent Brockman into an enraged zombie and twenty-eight days later, cannibal zombies have overrun Springfield. In the final frightening fable, Homer accidentally falls through a trapdoor in Moe's tavern and impales himself on the pipes of Moe's microbrewery. Moe serves the barflies a glass of delicious beer flavored with Homer's blood and Homer, now half-man, half-brewing apparatus, returns for vengeance. Written by Fox Publicity

Plot Summary | Add Synopsis


Animation | Comedy


TV-14 | See all certifications »






Release Date:

18 October 2009 (USA) See more »

Filming Locations:


Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.78 : 1
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Did You Know?


The first Treehouse special to air before Halloween since 1999. See more »


Lisa doesn't want Homer to bash Bart with the book stating it's the last book in the world, but we see two books on Bart's bookshelf when Homer is strangling him. See more »


Moe Szyslak: A little more hemoglobin, and your wife will be disrobin'.
See more »


References Spider-Man 3 (2007) See more »


Too Ugly to Hug
Music by Alf Clausen
Lyrics by Daniel Chun
Performed by Hank Azaria (uncredited)
See more »

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User Reviews

Not the Finest Halloween Special but they Never Fail to Entertain,
14 October 2014 | by lesleyharris30See all my reviews

Treehouse of Horror XX is a great Simpsons episode with three very well written story lines.It is honestly one of the weakest Halloween specials to date in my honest opinion,but I always thoroughly enjoy these episodes and this one is no exception.My favourite segment is certainly Don't Have a Cow,Mankind,it was a very clever take on zombie films,I also really enjoyed There's No Business Like Moe Business which was a very funny fake musical,but the first segment was certainly the weakest and was a bit too dark for Simpsons standards.Treehouse of Horror XX is a very enjoyable Simpsons episode.

In the series twentieth annual Halloween special,Bart and Lisa agree to help each other get revenge on their teachers,a zombie apocalypse starts in Springfield and Moe tries to win Marge's heart by convincing her Homer has left her.

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