Lord Voldemort. The death eaters are his followers.
There are giants that are all helping Voldemort and the death eaters as well as the death eaters using forbidden or destructive spells.
Flur and Bill's wedding gets interrupted by Death Eaters
voldemort and his death eaters
Tonks
loudly
To see who comprises the Death Eaters, check the Harry Potter Lexicon. (http://www.hp-lexicon.org/wizards/death_eaters.html) The Death Eaters.
The Life Eaters was created in 2002.
The Brain Eaters was created in 1958.
The Lotos-Eaters was created in 1832.
Geleen Eaters was created in 1968.
The Salt Eaters was created in 1980.
Not all the death eaters die in Harry Potter.
Eaters of the Dead was created in 1976-03.
Acid Eaters was created in 1993-08.
Death Eaters, he was one himself but it is unconfirmed if he had the dark mark.
It isn't really known because most of the Death Eaters who fought in the final battle are unknown.
You have to throw different curses at the death eaters