Those members of the Shadow Assassins were shadowy ninjas with glowing red and blue 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 as well as to the dark magical powers of Noob Saibot. Their powers allowed them to appear from foggy smoke allowing them to suddenly appear and ambush their foes. They were typically armed with maces and knives. In addition to this, they were capable of shooting out red skulls through dark magic at their enemies.
- It is possible that they were members of the Brotherhood of the Shadow.
- Shadow Assassins
- Shadow Stalkers
- Shadow Swordsmen