Wonder Man

Wonder Man is a member of the Masters of Evil, albeit more moral than his teammates.

The Avengers: Earth's Mightiest Heroes
Simon Williams was a businessman who lost his company at the hands of Tony Stark. Desperate, he asked his brother Eric for help. Eric, also known as HYDRA member Grim Reaper, took Simon to A.I.M., where MODOK turned Simon into an energy being known as Wonder Man.

Wonder Man went after Stark and also faced Giant-Man. Finally, his energy form proved to be unstable and he dissipated. After the Avengers left, Enchantress re-assembled Wonder Man and recruited him for the Master of Evil in exchange to remain alive.

When the Masters of Evil guarded the Norn Stones, Wonder Man faced Black Panther, who asked him if he really wanted the world in Zemo's hands. A dubitative Wonder Man left the battlefield.