Avengers, Horsemen of Apocalypse, Illuminati, S.H.I.E.L.D., The Defenders, The Worthy
Bio:
Child prodigy Bruce Banner became a weapons researcher for the US Army, where he was inadvertently exposed to the radiation of a prototype Gamma Bomb. This granted him the power to transform into the nearly invulnerable Hulk -- but at the cost of suffering the consequences of the Hulk's unthinking rages.