Like his Earth-616 counterpart, Banner began his days as a hero. He once fought Logan during a brief time in Canada. Eventually, Banner became a villain. No one knew for sure what caused his drastic change, some speculating that the radiation that had turned him into the Hulk finally wormed its way into his brain and changed his personality. When the super-villains took over, Banner joined in on the massacre of the heroes, supposedly killing Thor among others.
Banner took over large sections of California and Nevada as it own and named it Hulkland. He also mated with his first cousin She-Hulk and sired a group of inbred Hulks called the Hulk Gang. Through intimidation, they forced the people living there to pay rent or face having their property taken and even death. One of the people that was extorted was Logan who had become a pacifist.
- 3 appearance(s) of Bruce Banner (Earth-21923)
- 1 minor appearance(s) of Bruce Banner (Earth-21923)
- 23 mention(s) of Bruce Banner (Earth-21923)
- 8 image(s) of Bruce Banner (Earth-21923)