This category is for articles about characters that have some sort of relationship to Halloween: Creatures which originate on planets other than Earth.
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- Scooby-Doo and the Ghoul School
- The Simpsons: Halloween of Horror
- The Simpsons: Treehouse of Horror
- The Simpsons: Treehouse of Horror II
- The Simpsons: Treehouse of Horror III
- The Simpsons: Treehouse of Horror IV
- The Simpsons: Treehouse of Horror V
- The Simpsons: Treehouse of Horror VII
- The Simpsons: Treehouse of Horror VIII
- The Simpsons: Treehouse of Horror IX
- The Simpsons: Treehouse of Horror XI
- The Simpsons: Treehouse of Horror XIV
- The Simpsons: Treehouse of Horror XV
- The Simpsons: Treehouse of Horror XVI
- The Simpsons: Treehouse of Horror XVIII
- The Simpsons: Treehouse of Horror XIX
- The Simpsons: Treehouse of Horror XX
- The Simpsons: Treehouse of Horror XXII
- The Simpsons: Treehouse of Horror XXV
- The Simpsons: Treehouse of Horror XXVII
- The Simpsons: Treehouse of Horror XXVIII
- The Simpsons: Treehouse of Horror XXX
- Slim Animatronic