Eric Williams, the brother of
Simon Williams, was born in
Paterson, New Jersey. He was constantly neglected by his parents, who gave all of their attention to Simon and failed to curb his violent tendencies. Eric eventually becomes a thief and member of the
Maggia and moves to Las Vegas, while Simon takes over the family business, Williams Innovations. After his company is faced with bankruptcy, partly due to competition with
Stark Industries, Simon works with Eric and
Heinrich Zemo to get revenge and is transformed into Wonder Man. Simon later sacrifices himself to save the Avengers, and Eric becomes the Grim Reaper out of grief. In his next appearance, the Grim Reaper confronts the Avengers with his original
Lethal Legion, composed of the
Living Laser,
Power Man,
Man-Ape, and the
Swordsman. He later learns that the
Vision was implanted with Simon's brain waves and refuses to harm him, leading to his defeat. The Grim Reaper later allied with the
Space Phantom and
Hydra. He planned to transfer the Vision's mind to Wonder Man's body, thus "resurrecting" his brother. He battled the Avengers again and was defeated. Behind the scenes, the Grim Reaper later had Wonder Man resurrected as a zombie by the
Black Talon to attack the Avengers. Wonder Man was restored to true life as a result. Grim Reaper then captured the Avengers, and staged a trial to determine whether the Vision or Wonder Man was his true brother. He was defeated by Wonder Man. Later, the Grim Reaper attempted to kill both the Vision and Wonder Man, but was defeated by Vision. Later still, the Grim Reaper with Ultron,
Nekra and other allies, captured the Avengers. Grim Reaper attempted a recreation of "Simon Williams" as a zombie. He was pursued by the Vision and Wonder Man in a cave, and died in a fall from the cave ledge. Grim Reaper was then resurrected by Nekra as a zombie, but he believed himself to be alive. The zombie battled Wonder Man and
Magneto, but when he realized he was actually dead, he "died" again as a result. Much later,
Immortus resurrects the Grim Reaper as a member of his
Legion of the Unliving. Grim Reaper battled Wonder Man, and "died" again of a broken neck. He was then resurrected by Nekra as a zombie again, this time under the condition that he absorb a human life-force every 24 hours. He killed Nekra as his first victim, and then battled Wonder Man before escaping. He battled Wonder Man and the
Mandrill, and escaped again. The scythe was fused to his arm by Ultron, and he formed an alliance with Ultron. The Grim Reaper was later restored to life by the
Scarlet Witch's magic. When Ultron attempted to create a new "family" for himself, Grim Reaper was abducted as one of the six individuals that came closest to being Ultron's "family" - the others being
Hank Pym, Wasp, Vision, Scarlet Witch, and Wonder Man. Ultron regarded Grim Reaper as the first human connection made apart from Pym, as well as the connections to Wonder Man and Vision. While Vision distracted Ultron, Eric was able to escape his bonds and free the other prisoners, although he subsequently fled, informing Vision that he only released the others to save himself rather than any more noble goal. The Grim Reaper reappeared during the
Secret War aftermath that had been organized by
Nick Fury against
Latveria. He was among the supervillains who had been supplied with enhanced technology by Latverian dictator
Lucia von Bardas and sent to attack the heroes who had been involved in Fury's Secret War. The Grim Reaper is one of the many villains who escaped from the
Raft prison. Being at large for several months, the Grim Reaper was eventually tracked down by
Captain America and
Cable during the "
Civil War" storyline. Captain America and Cable brought Grim Reaper down with the aid of their other friends. He was found bound to a pole along with the
Vulture. He was once again put into custody by
S.H.I.E.L.D. During the
Dark Reign storyline, the Grim Reaper forms a new incarnation of the Lethal Legion as part of a plan against
Norman Osborn. The team is ultimately defeated by the
Dark Avengers and
H.A.M.M.E.R. agents and imprisoned in the Raft. While there, Grim Reaper is killed by an inmate loyal to Osborn. During the
Chaos War storyline, the Grim Reaper returns from the dead after
Death leaves the underworld, and becomes a servant of
Amatsu-Mikaboshi. He and Nekra fight the "Dead Avengers" (consisting of
Captain Marvel,
Deathcry,
Doctor Druid, Swordsman, Vision, and
Yellowjacket). He manages to kill most of them except for Swordsman and Yellowjacket. Grim Reaper and Nekra are killed when Vision self-destructs. As part of the 2012-2013 "
Marvel NOW!" relaunch, the Grim Reaper appears alive and attacks the
Avengers Unity Squad's debut press conference, claiming that he is now unable to die. He is seemingly killed by
Rogue after she absorbs Wonder Man's powers. He is restored to life by a
Celestial Death Seed, and is recruited by the
Apocalypse Twins as part of their new
Horsemen of Death. He attacks Simon, defeating and capturing his brother. Grim Reaper destroys Earth and helps teleport all mutants to Planet X. After the Apocalypse Twins are defeated, Grim Reaper escapes with Daken. He later returns to launch a surprise attack against the Vision's new synthezoid family. The Vision is not present at the time, and Grim Reaper is able to severely injure
Viv, Vision's daughter. Vision's wife Virginia fights back, but accidentally kills Grim Reaper in the process, a fact she hides from her husband. After learning of what had happened, Vision decides to keep the events secret to protect his family from the legal consequences and possible backlash from the Avengers. In the
Damnation storyline, Grim Reaper is revived when Doctor Strange restores Las Vegas. In
The War of the Realms, Grim Reaper is approached by
Mephisto, who offers him the chance to kill the Vision in return for becoming his new Valkyrie. When
Jane Foster taking on the position complicates matters, Grim Reaper is sent to take a hero's soul into the afterlife to cement his claim to the name. He targets Doctor Strange, trapping his soul in a magic mirror. Jane takes him on as Valkyrie, and defeats him by taking him to
Valhalla. ==Powers and abilities==