This was kind of fun to do, but here's the list I came up with of villagers that would fit a horror town:
Pietro (Killer Clown)
Lucky (Mummy)
Ribbot (Android)
Drago (Dragon)
Cobb (Mad scientist)
Octavian/Zucker (Space Alien)
Coco (Souless demon thing)
Wolfgang (Werewolf)
Grizzly (Bit of a stretch, but his eyes turn red and scary when he's angry, plus Grizzly bears are scary)
Kiki/Tabby (Kiki is a black cat, Tabby kind of looks like a jack-o-lantern)
Croque (His face sort of looks like a jack-o-lantern too)
Hans (Abominable Snowman?)
Pietro (Killer Clown)
Lucky (Mummy)
Ribbot (Android)
Drago (Dragon)
Cobb (Mad scientist)
Octavian/Zucker (Space Alien)
Coco (Souless demon thing)
Wolfgang (Werewolf)
Grizzly (Bit of a stretch, but his eyes turn red and scary when he's angry, plus Grizzly bears are scary)
Kiki/Tabby (Kiki is a black cat, Tabby kind of looks like a jack-o-lantern)
Croque (His face sort of looks like a jack-o-lantern too)
Hans (Abominable Snowman?)