Ghouls are zombie-like creatures that are created when a vampire drains the blood of a non-virgin human. If fatally wounded, they instantly crumble to dust. They are under the control of the vampire who bites them, eat human flesh, and are intelligent enough to use firearms. It is not rare to see a vampire amass a small army of ghouls for offense and defense. Despite their relative skill compared to the lumbering undead of other lore, they are still quite slow and lack the intellect to execute any manner of defensive maneuvers, making them vulnerable to specialized weaponry.
A ghoul is a folkloric monster associated with graveyards and consuming human flesh, often classified as undead. The oldest surviving literature that mention ghouls is likely One Thousand and One Nights.