Grim Reaper (Eric Williams) is a fictional character, a comic book supervillain in the Marvel Comics universe. He first appeared in The Avengers #52 May (1968), by Roy Thomas and John Buscema.
Eric Williams, the brother of Simon Williams (also known as Wonder Man), was born in Paterson, New Jersey. Eric was always the black sheep of his family. His mother would tell him that he was 'born bad', while heaping affection on Simon. Eric's father was charged with disciplining him, but was abusive and uncaring. He even preferred to watch TV lazily, while Eric was torturing the family cat. At the same time, their mother Martha was loving and attentive to Simon, making Eric bitter and jealous.
One day Eric was playing with chemicals in the garage, and caused a fire which burned down their house. Simon felt guilty for not stopping Eric, and resolved to be responsible for Eric from there on. As they grew older, Simon grew studious while Eric was an athlete. Eric also became more rebellious, and tried to get Simon to join him in his petty thefts. Eventually Eric became a gambler and joined the Maggia and moved to Las Vegas. Meanwhile, Simon took over the family business, Williams Innovations.
Partly due to competition with Stark Industries, Williams Innovations began to fail. Desperate, Simon turned to Eric and his mob ties for help. Simon embezzled money from the company to invest with Eric, but Simon was caught and jailed. Simon was freed from jail by Baron Zemo, induced by an offer of revenge on Tony Stark by defeating Iron Man and the Avengers. Simon was transformed into Wonder Man, in order to infiltrate the Avengers. Zemo's empowering process also poisoned Simon, ensuring his loyalty in exchange for the antidote. Simon's better nature won out though, and he 'died' saving the Avengers from Zemo's trap (though he had really only entered a coma due to his body adjusting to superpowers).
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