Real Name: Grom
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telepathy, telekinesis, other mental powers. superhuman strength and durability.
Grom was born on the ancient planet Eternus, a member of a highly advanced, belligerent race of humanoid aliens who are now extinct. Eons ago, the Eternians learned to control aging and eliminate natural death. To prevent overpopulation, the Eternian government sanctioned interstellar warfare and conquest which regularly claimed the lives of multitudes. When enemies could not be found to wage war against, the government held gladiatorial spectacles called The Games. Grom was a naturally skilled gladiator who earned in combat title Champion of Champions. Soon after Grom’s coronation, the Eternians discovered Gigantus, a huge planet on which dwelled an equally advanced but peaceful civilization. Immediately they launched an attack upon the world. Because Gigantus was several hundred times larger than Eternus (about the size of Jupiter), the war became very costly and difficult for the Eternians to sustain. Finally it was decided to simply obliterate the planet. The Eternians showered Gigantus with immensely powerful nuclear warheads and detonated them, destroying the planet. A huge armada of Gigantians, however, who had learned the ways of war after eons of peace, escaped the world’s destruction and attacked Eternus in retaliation.
Unprepared for so devastating an attack, the Eternian defenses fell. Government leaders realized that their race faced total extinction. Desperately Eternian scientists prepared to transform Grom, the race’s most outstanding physical specimen, into the receptacle of the collective consciousness and mental might of Eternus. As the surviving population of Eternus marched into huge “synthesizing chambers” scattered across the planet, their organic brains were converted to pure mental energy and projected into Grom. When the process was complete, and only the scientists who conducted the process were left alive, the capsule containing Grom was launched into space to incubate until the being learned to control the powers of his group mind. Eons passed. Then Grom emerged as the Overmind, a warrior who possessed the collective psionic power of the billion brains and who carried in his memory the subliminal command to subdue the universe.
The Overmind attacked the first inhabited planet he came upon, the Earth, but was defeated by the Fantastic Four with the aid of the Stranger. The Stranger claimed to be the embodiment of the collective psionic power of all the surviving Gigantians. The Stranger’s psionic abilities proved to be more powerful than those of the Overmind and he shrunk the Overmind to microscopic stature and exiled him to a mote of dust.
Several years later, a demonic creature called Null the Living Darkness located Overmind and decided to use him as a pawn in his scheme of conquest. However, when he restored the Eternian to his original power and stature, Null accidentally transported the Overmind to an alternative Earth other than the one upon which he had met his defeat. This Earth was the home of the Squadron Supreme. Null and the Overmind battled the Squadron, who sent for reinforcements in the persons of the Defenders. A being composed of the psychic union of six of the alternate Earth’s most powerful telepaths also aided in the struggle, and were instrumental in neutralizing Null and the Overmind. At the battle’s end, the Overmind’s Eternian consciousness was driven out of its body and the six telepaths, lacking physical bodies, took refuge inside him. Now possessing a benevolent mind and a small fraction of his former mental might, the Overmind returned with the Defenders to their world. After parting company with the group, he set forth for parts unknown.
First Appearance: Fantastic Four (1961) #113
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View a chronological listing of this character's appearances
All-New Official Handbook of the Marvel Universe A to Z (2006)
Captain Marvel (1968)
#39 Chaos War: Chaos King (2011)
- 'The Trial Of The Watcher'
Fantastic Four (1961)
#113 Fantastic Four: Foes (2005)
- 'The Power of -- The Over-Mind!'#114
- 'But Who Shall Stop the Over-Mind?'#115
- 'The Secret of the Eternals'#116
- 'The Alien, the Ally, and -- Armageddon!'#568
- 'Doom's Master, Part 3'
#1 Marvel Comics Presents (1988)
- 'Part One'#5
- 'Part Five'#6
- 'Part Six'
#40 Marvel Encyclopedia (2002)
- 'Hong Kong Inferno!/Some Enchanted Evening/The Hit!/...Anything'
Marvel Encyclopedia (2014)
New Thunderbolts (2005)
#12 Official Handbook of the Marvel Universe A to Z (2008)
- 'Purple Reign, Part Three: Living Lies'
#13 Squadron Supreme (1985)
- 'The Earth You Have Reached...'#14
- 'The World My Laboratory'#15
- 'Death Watch'#16
- 'Germ of an Idea'
#1 Squadron Supreme: Death of a Universe (1989)
- 'The Utopia Principle'
OGN SC The Defenders (1972)
- 'Death of a Universe'
#111 The Marvel Encyclopedia (2006)
- 'Fathers and Daughters'#112
- 'Strange Visitor From Another Planet!'#113
- 'Moon Madness!'#114
- 'Dance of Darkness/Dance of Light!'#115
- 'A Very Wrong Turn!'#116
- 'Two By Two'#117
- 'The Gift'#120
- 'Things to Come!'
HC The Official Handbook of the Marvel Universe (1983)
- 'The Marvel Encyclopedia'
#3 The Official Handbook of the Marvel Universe Deluxe Edition (1985)
- 'C-D: From The Collector to Dracula'#8
- 'N-P: From Namorita to Pyro'
#9 The Official Handbook of the Marvel Universe: Master Edition (1990)
- 'Molecule Man to Owl'
The Official Handbook of the Marvel Universe: Update '89 (1989)
#2 Thunderbolts (1997)
- 'Champion of the Universe to Ecstasy'
What If...? (1989)
- 'What If the Avengers Had Lost The Evolutionary War?'
Defenders (Marvel)(01 - Original Team)
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