Ghoul

Ghouls are a species of cannibalistic nocturnal creatures from the Cthulhu Mythos. They are first described in the Cthulhu Mythos by Lovecraft's story "Pickman's Model".

Description

Lovecraftian Ghouls are usually described as green-skinned humanoid hairless creatures with canine heads and pointed ears. They inhabit underground tunnels and crypts, and eat the corpses of dead humans. Despite their favored food and reclusive habits, Ghouls are usually not hostile creatures, and in "The Dream-Quest of Unknown Kadath" the protagonist gains the aid of a group of Ghouls and travels with them for a period of time. Ghouls communicate using a "meeping" or gibbering vocalization.

It is uncertain whether or not Ghouls can actually be classified as a separate species from Humans, as some have been shown to be Humans who, living amongst Ghouls, took on their appearance.