Mumm-Ra was once a mighty ruler of ancient Egypt. Unfurtanately, when death called on him, so did evil.
Unable to accept death, he turned to evil spirits to restore him. The price was his immortal soul which would
then become twisted and dark. His once great pyramid, became dark and isolated, and full of evil rage
("Mumm-Ra Lives!"). By calling on the Ancient Spirit's magic, he could transform into Mumm-Ra The Ever
Living (First seen in "Unholy Allies").
The evil remained silent for years as Mumm-Ra's power swelled in him. He first demenstrated his power when
he met Wizz-Ra in titanic battle. He sought the Golden Helmet of Par-Nuer. Although he failed, Wizz-Ra and the
helmet were swept into the Seventh Dimension ("Dimension Doom"). When Third Earth began a tradition of
peace, he quickly made it a place for evil and doom to delight in. During this period, Mumm-Ra was focused
only on the northern hemisphere of Third Earth. The southern regions were under the torturous rule of another
evil being, Zaxx. Mumm-Ra engaged Zaxx in battle and imprisoned him in a talisman, leaving him free to rule
ALL Third Earth. Mumm-Ra kept the fate fo Zaxx a guarded secret for centuries ("The Zaxx Factor"). When his
mission to doom Third Earth was thought complete, he was returned to his Pyramid to rest until needed. The
Ancient Spirits of Evil awakened him briefly to stop the Lunatacs from taking Third Earth for themselves. He
incased them in molten rock ("Mumm-Ra Lives!"). Soon after, he was dealt a painful blow by the Ancient Spirits
of Goodness as they fought to restore Third Earth. They sent a sorcerer named Brodo to stop, he failed and
was sent into the Astral World ("The Astral Prison"). The spirits then battled him themselves, draining his power
to almost none. He returned to his casket to restore his energy, while Third Earth slowly became a safe place
again ("The Terror of Hammerhand"). The Spirits of Goodness created a warrior of their own to countermand
him. Mumm-Rana, the mighty queen of ancient Egypt, was brought to and also began to store up her power for
the day Mumm-Ra may return. She did not awaken until she saved the Mutants of Plundarr from certain death
("Mumm-Rana"). Mumm-Ra was again awakened when the ThunderCats of Thundera crashed on Third Earth
("Exodus"). When he became Mumm-Ra, he also obtained knowledge as well as power. He learned of the
great powers of the universe such as The Eye of Thundera which was in the protection of the Thundercats. He
made allies of the Mutants so they could help him obtain the Sword of Omens which held the eye ("Unholy
Allies"). The Thundercats learned early on his weakness. That being his horrid reflection is the one thing that
scares and defeats him. The Mutants and he both failed time after time to secure the Sword of Omens. When
Wizz-Ra returned briefly from the Seventh Dimension he temporarily gained the Golden Helmet of Par-Nuer
and placed the Thundercats under it's spell ("Dimension Doom"). By taking on different forms, he has tricked
the Thundercats countless times ("All That Glitters","Catfight","Return to Thundera","Fond Memories","The Evil
Harp of Char-Nin","Runaways","Return of the Thundercubs","Excalibur","Queen of Eight Legs","The Bracelet of
Power","The Astral Prison",etc.). When Mumm-ra sought out the greatest power of all, The Star of Thundera, it
was believed to have vanquished him for eternity ("Thundercats Ho!","Mumm-Ra Lives!").
He was later found to have survived, and his loyal dog Mu-Mutt returned him to his Pyramid to once again
restore his power. He then freed the Lunatacs, but they were found to be insufficient in destroying the
Thundercats. He called on the mystic evil power of The Ancient Spirits of Evil to give him the strength he
needed. They did so and he restored with even more power than before. He also no longer was afraid of his
reflection ("Mumm-Ra Lives!"). In an effort to seek out the Sword of Plundarr that destroyed the Thundercats
home, Thundera, he used mysterious magic and reformed the planet. He did so to make it easy to obtain not
only the sword, but the great treasure of Thundera, lost for many years. Unfurtanatly, he managed to get the
Sword of Plundarr and use it in his attempt to get The Treasure of Thundera. In his attempt, the treasure was
scattered across what is now called "New Thundera". To regain it, the Ancient Spirits of Evil granted him more
power than ever before, he became Mumm-Ra, The Ever Living and All Powerfull ("Thundercubs","Return of
the Thundercubs","The Last Day").
After gaining his new powers, however, he was still unable to defeat Lion-O, the Lord of the Thundercats and
his Thunderian Pyramid he had constructed on New Thundera was demolished. He later reconstructed the
inside of it in an underground grotto to hide from the Thundercats prying eyes ("Return of the Thundercubs").
With his new powers, the Ancient spirits of Evil expected the Thundercats doom. They did not receive it. Not
only did he not regain the Treasure of Thundera, but he allowed the Thundercats to attain it instead and after
the Lunatacs and Mutants were banished from Third Earth, The Ancient Spirits of Evil threatened to do the
same to Mumm-Ra unless he defeated the Thundercats in one day. He was given ultimate power to acheive
this and almost won. He defeated Cheetara, Tygra, Panthro and the Thunderkittens and destroyed the Tower of
Omens as well as the Thundertank. Lion-O delayed Mumm-Ra until the end of the day and then rescued the
other Thundercats from limbo. Mumm-Ra was exiled from Third Earth along with his dreadful dog, Mu-Mutt
("The Circus Train","The last Day","Return to Thundera").
Mumm-Ra's Minions
Driller
A mercenary Third Earthian who works for diamonds. He requires diamonds or other such hard material to maintain his drill point.
JackalMan
A cowardly mutant.He wields a mace. Afraid of getting hurt but not of stabbing someone in the back.
Monkian
Another mutant. Wields a morning star and a shield with an ape's face on it (shoots explosive pellets from the mouth). Can climb trees well.
Mu-Mutt
Loyal "dog" of Mumm-Ra
Plundarian Warbot
A virtually indestructable war machine. Lion-O discovered it's weakness after traveling back it time to just before Thundera was destroyed.
Pumm-Ra
Mumm-Ra desguised as a thundercat. He used this disguise to try to get the Sword of Omens.
Ratar-o
Mutant general and owner of the ship, the RatStar. Wields twin daggers that have various powers.
Slythe
Leader of the Mutants of Plund-arr on Third Earth. Often pilots the Nose Diver. Wields stone bladed axe and warp gas (causes people to act the opposite of their normal behavior).
VultureMan
The mutants' inventor. Creates almost all of the weapons and electronic equipment for the Mutants on Third Earth.