After the 1969 Apollo 11 Moon landing, the United States government commissioned Doctor John Kronton to create an automaton that could assist mankind with exploring and colonizing other worlds, a project supervised by Carol Danvers.

When construction of the nigh-invincible robot was complete, Danvers, fearing that it could possibly turn against humanity, successfully convinced a Senatorial Commission to abandon the project and seal the android away with other apocalyptic weapons on a desolate island in the Pacific Ocean.

[6] Recommencing her battle with the Doomsday Man, Ms. Marvel manages to deactivate it by attacking the weak point that had been secretly installed in the back of its head by Doctor Kronton.

When the building is destroyed during an altercation involving A.I.M., the New Warriors, the Avengers and Lord Templar,[9] the Doomsday Man escapes and, after concluding that Korman's usefulness as wetware is waning, sets out to replace him with Ms.

When the Wrecking Crew are cornered by the Avengers after mistakenly attacking Photon, the Doomsday Man attempts to execute them from afar to prevent them from revealing its existence and then abducts Warbird itself, bringing her to its base in the Bronx.

[10][11] As it and Warbird fight, the Doomsday Man rants about how it requires her to be complete and about how they both share "the Kree warrior's bond" due to being "born of the Psyche-Magnitron".

After spending months in a vegetative state, Korman awoke, assumed control of his and the Doomsday Man's shared body and embarked on a rampage, intent on murdering both Warbird (who had gone back to being Ms. Marvel) and "a great number of people" by releasing the Targoth, infectious zombies that A.I.M.

Kerwin Korman merging with it increased the Doomsday Man's mental faculties, giving it a human-like mind and personality, as well as the ability to improvise.

Korman himself was a genius inventor and engineer and, like Carol Danvers, he was mutated into a human-Kree hybrid entity via exposure to the radiation emitted by the Psyche-Magnitron.