Mumm-Ra's Pyramid

Mumm-Ra the Ever Living: The primary nemesis of the Thundercats, this slave to the Ancient Spirits of Evil has survived for thousands of years on Third Earth. He possesses incredible magical powers, and is also the wielder of the awesome Sword of Plundarr. His only weakness is a limited stamina; he needs often to return to his Pyramid to regenerate.

Ancient Spirits: The four god-like focii of all evil, whose statues stand in the Black Pyramid. They give Mumm-Ra immortality in exchange for perpetual servitude, and possess nearly unlimited powers. However, they require other beings to serve their demands, and cannot intervene directly in worldy affairs

The Mutants

Slythe: Leader of the evil mutants on Third Earth

Monkian: He is a mutant with much brawn but little brain. He can maneuver easily admist the treetops, and wields a magic shield capable of firing cannonballs or energy blasts.

Jackalman: A canine mutant skilled with the axe. He can sometimes be more ambitious for his own good, but is often too cowardly to fulfill his aspirations.

Vultureman: Perhaps one of the most ambitious of all the Mutants, Vultureman is a dangerous and crafty inventor. It is he who is responsible for all the Mutant technology and weapons of destruction. However, his loyalty to his fellow Mutants is questionable, as he has often allied himself with Mumm-Ra or the Lunatacs instead.