The Simpsons (1989– )
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Treehouse of Horror X 

The Simpsons attempt to cover up their accidental murder of Ned Flanders in "I Know What You Did-Iddly-Did." Then, Bart and Lisa become superheroes and save Lucy Lawless from the evil ... See full summary »


(as Pete Scary Spice Michels)


(created by) (as Grat Moaning), (developed by) (as Maims Hell Brooks) | 5 more credits »

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Episode credited cast:
Homer Simpson / Grampa / Kodos / Krusty (voice) (as Dan Casketaneta)
Marge Simpson (voice) (as Julie Kadavener)
Bart Simpson / Nelson Muntz (voice) (as 'Nympho-Nance' Cartwright)
Lisa Simpson (voice) (as The Artist F.K.A. Yeardley)
Moe Szyslak / Chief Wiggum / Lou / Professor Frink / Collector (voice) (as Scary Connelly)
Announcer / Kang / Maggie / Reverend Lovejoy / Ned Flanders / Skinner / Derek Smalls / Lenny / Guard / Pauly Shore (voice) (as Harry 'Dead Til 2005' Shearer)
Edna Krabappel (voice)
Rosie O'Donnell (voice) (as Tress McNihillist)
Milhouse Van Houten (voice) (as Pamela 'Heebie-Jeebies' Hayden)
Karl Wiedergott ...
Lead Guitarist / Drummer / Rick James (voice) (as Karlof Bleed-Her-Cut)
Marcia Mitzman Gaven ...
Maude Flanders (voice) (as Mummy Mitzman Gaven)
Rest of cast listed alphabetically:
Himself (voice)
Himself (voice)
Herself (voice)
Werewolf Flanders (voice)


The Simpsons attempt to cover up their accidental murder of Ned Flanders in "I Know What You Did-Iddly-Did." Then, Bart and Lisa become superheroes and save Lucy Lawless from the evil Collector in "Desperately Xeeking Xena." Finally, Homer's incompetence causes a Y2K apocalypse in "Life's A Glitch, Then You Die." Written by Mike

Plot Summary | Add Synopsis


Animation | Comedy


TV-PG | See all certifications »

Parents Guide:





Release Date:

31 October 1999 (USA)  »

Filming Locations:

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


One of the people collected by the Collector was the Doctor from Doctor Who. (The incarnation played by Tom Baker) See more »


When the family run over Ned Flanders at the beginning of the episode, his sweater is intact. However, when his death is shown again later in the episode, the sleeves of his sweater are torn up to the elbows. See more »


[Homer tries to gain passage on an escape rocket]
Homer: I am the piano genius from the movie "Shine".
Guard: And your name is...?
Homer: Uhh... Shiney McShine.
See more »


Spoofs Scream (1996) See more »


The Trolley Song
by Hugh Martin and Ralph Blane
Performed by Tress MacNeille and cast
See more »

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User Reviews

2 December 2008 | by (Mexico City) – See all my reviews

Season 11 is still good Simpsons stuff and this Halloween special maybe is not as fantastic as the ones from the golden age of The Simpsons (the special in which appears Homer3 for example) but it is very funny with some memorable stuff (like the very last scene), in short it is another very good episode from Season 11, a Season that at its very best is almost as highly re-watchable as any other from the wonderful years of the show. Certainly this is not a recent Season, actually Season 11 began airing on 9/26/99 (with the great Mel Gibson episode), almost 10 years ago but I think that actually this Season is one of the last that I saw complete but anyway this Treehouse of Horror aired on 10/31/99 and does contain crazy stuff about the coming of the year 2000 but it begins with the segment "I Know What You Diddily-Iddily-Did", after having the introduction with Kang and Kodos. This segment has the Simpsons killing accidentally Flanders and the funniest stuff comes when Homer is with the body of Flanders (trying to give Flanders a new death) who turned to be a werewolf. The second segment "Desperately Xeeking Xena" for me is the best one; it is a funny superhero episode with Bart and Lisa as Stretch Dude and Clobber Girl. Comic Book Guy is memorable here as The Collector, his collection is really bizarre and scary. Lucy Lawless is the heroin, The Collector has a memorable death but he opened a limited lightsaber! Finally the last segment "Life's a Glitch, Then You Die" is also good, it has Homer destroying the Earth! A very good Halloween show, in 1999 The Simpsons was a really good show.

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