Chameleon (comics)
Following the "Dying Wish" storyline, Chameleon later fights Superior Spider-Man (Otto Octavius's mind in Spider-Man's body) and the Secret Avengers on the S.H.I.E.L.D. Helicarrier. Chameleon ends up knocked unconscious and Superior Spider-Man transports him to his hidden underwater lab where he ends up imprisoned. Chameleon, Electro, Sandman, Mysterion, and the Vulture are later seen as part of a team led by Superior Spider-Man called the "Superior Six". Superior Spider-Man has been temporarily controlling their minds in order to redeem them for their crimes. He does this by forcing them do heroic deeds against their will which almost get some of them killed. Every time he is done controlling them, he puts them back in their containment cells. They eventually break free of Superior Spider-Man's control and attempt to exact revenge on the wall-crawler, while nearly destroying New York in order to do so. With the help of Sun Girl, Superior Spider-Man is barely able to stop the Superior Six.
Alpha Centurion
During the "Zero Hour" storyline, Superman was transported to an alternate timeline where he stumbled upon a Metropolis whose hero was the Alpha Centurion, a man named Marcus Aelius from Ancient Rome who had been trained by an alien race called the Virimiru only to return centuries later. Initially joining the gathered heroes, the Alpha Centurion went on to join Extant and Parallax in fighting against the heroes of the DC Universe, siding with Parallax as he promised to restore Alpha Centurion's apparently lost timeline. After the heroes had to restart existence with a new Big Bang, all alternate realities ceased to exist and this Alpha Centurion was no more.