The Endless are the elite of Malekith’s personal agents.
All Endless are personal property of the Witch King, resisting them is the same as resisting Malekith and carries a death sentence. They are given to the him as babes from the various high born families of Naggaroth as a tithe and are raised to be completely obedient to him.[1b] As attire, they wear silver masks that are never removed.[1a] Furthermore, they have no personal names, being only referred to as Endless.[1b] All of their numbers are trained not only in combat, but also in the use of petty magic, although the inner secrets of the dark arts are only open to females.[1b]
If an Endless dies, his mask and gear is given to the next neophyte, who joins their numbers. There are always only one thousand Endless.[1b]