Andromedans

The Andromedans are a race of malevolent aliens from an unknown universe who are descended from humanity, separated by billions of years of evolution. The Andromedans first appear in the Council of Creators: Side Stories episode Visitors From Another Time, and were created by KoopaGalaxain.

Appearance
After billions of years of evolution, the Andromedans lack any systems considered unnecessary to support their giant brains. As such, excluding their brain, Andromedans possess a single heart, contained at the top of their sole appendage in a structure resembling a brainstem, a colossal red eye, and four dark mandibles used for tearing flesh away from deceased 'prey' for consumption. The single appendage Andromedans possess, which resembles a spinal cord, can extend to strike opponents from a distance, but is primarily used for terrestrial locomotion. The huge, exposed brain of an Andromedan constantly pulsates as blood is pumped through it.