Shadow Assassins

The Shadow Assassins were a group consisting of undead warriors that served Noob Saibot.

Overview
Those members of the Shadow Assassins were shadowy ninjas with glowing eyes hinting their supernatural origins. They were said to resemble the warriors of the Lin Kuei clan. Some of their numbers were transformed Humans who were subjected to the nanotechnological powers of Smoke.

Its possible they were members of the Brotherhood of the Shadow.