Death Eaters are followers of Voldemort who fought for him in both the First and Second Wizarding Wars. They believe in pure-blood supremacy and want a world where witches and wizards rule over Muggles. They are well practiced in the Dark Arts and use the Unforgivable Curses as a way of gaining power and control. Voldemort’s inner circle of Death Eaters have the Dark Mark tattooed on their left forearms which is used as a means of communication.
When one Dark Mark is touched by Voldemort, it sends a signal to all other Death Eaters requesting that they apparate to their leader’s side. Death Eaters usually appear in a dark, hooded cloak and metal mask, to disguise their identity. Famous Death Eaters include Bellatrix Lestrange and Lucius Malfoy.