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These are the villains from many films, games, TV shows, songs, comics, and books of the horror genre. Monsters, ghosts, ghouls, witches, dinosaurs, vampires, zombies, demons, werewolves, mummies, cannibals, psychopaths, serial killers, mutants and aliens - the world of horror is a scary place and these guys are probably the reason why. They are designed to frighten, disturb and generally make us afraid.

Horror can be supernatural or merely disturbing but shares similar concepts such as death, dread and so forth. Villains in Horror don't necessarily have to inhabit exclusive genres either, as Horror can merge with almost any setting.

Villains who are simply scary themselves but don't come from horror works, such as Giygas, Satan, Flowey, All For One, Tomura Shigaraki, Judge Doom, Kevin, Slade, HIM, Hisoka, Tower of Sauron, and The Lich do not qualify. Only villains coming from works intended to frighten the audience can qualify.