Banshees - a female spirit who will emit out a long, wailing cry as a warning that someone is about to die in a particular household. They appear in ghost form wearing long white or grey dresses and often having long, fair hair.
Domovik - a spirit of Russian mythology who lives either behind your stove or under the doorstep. He acts as a guardian or watchman for the home, however, if you upset him in any way, he may decide to burn your house down.
Kelpie - a supernatural shape-shifting water horse from Celtic folklore. It appears to humans to be a lost pony and is believed to be able to lure humans into the water to drown and then eat them.
Hellhound - a supernatural dog that guards the entrance to the world of the dead and hunts down lost souls and brings them back.
Wyvern - a legendary winged reptilian creature with a dragon's head, the hindquarters of a snake or lizard with two legs or none, and a barbed tail.
Kappa - a type of water sprite found in Japanese folklore which is usually seen as mischievous troublemakers. Small children are one of the gluttonous kappa's favorite meals, though they will eat adults as well.
Djinn - in Islamic mythology, they are a race of spirit beings that can be good or evil. (Djinn, or jinn, is the origin of the more familiar word "genie" in English.)
Wendigo - a malevolent cannibalistic spirit in which humans could transform, or which could possess humans. Those who indulged in cannibalism were at particular risk.
Shtriga - in Albanian folklore, was a vampiric witch that would suck the blood of infants at night while they slept, and would then turn into a flying insect (traditionally a moth, fly, or bee). Only the Striga herself could cure those she had drained (often by spitting in their mouths), and those who were not cured inevitably sickened and died.
Rokurokubi - a female monster with an extremely flexible neck. By day they are indistinguishable from normal women, but after nightfall rokurokubi stretch their necks out to any length in search of prey. According to one theory, they are seeking out men in order to suck the life energy out of them.
Kitsune - a Japanese fox spirit who can act as a lover, a trickster, or a succubus, depending on the story.
Abiku - a West African demon that tempts children away from their homes to eat them.