A "Red Demon" is a giant ape-like caretaker. It has varied fur color, and eye color. They wield giant metal clubs that can use Xeno technology to fly through the air until they make contact with something.
They have been reported to actually lift N.O.V.A. troops off the ground and beat them with either their fists or clubs.
Like most caretakers they have energy shields along with heavy armor.
- The are very similar to the Brutes from Halo