During his millennia of activity, the Forgotten One has used the names of or been mistaken for numerous heroes of myth and legend, including
Gilgamesh and
Hercules. He became an outcast from his fellow Eternals when their ruler,
Zuras, decreed that he had been too proud a meddler in the mortal world and confined him to a sector of
Olympus.
Sprite convinced him to come out of exile and journey to the mother-ship of the Fourth Host of the
Celestials to assist the Eternals in battle against the
Deviants. After this battle, he was renamed
Hero by the
One Above All, the chief of the
Celestials, who had created the Eternals and Deviants. After losing a battle with
Thor, Hero and the other Eternals assist Thor in battling the Celestials to prevent them from destroying humanity. When the membership of the
Avengers is virtually emptied, the Forgotten One joins them for a time. He renames himself
Gilgamesh, donning a costume that resembles the hide of the
Bull of Heaven. Gilgamesh assists the Avengers in their struggle with the
Lava Men and is severely injured during the battle. Gilgamesh is brought to the Eternals' home of Olympia, which had temporarily fallen into the
Negative Zone, to recover from his injuries. Gilgamesh returns to
Avengers Mansion during "The Crossing"
crossover event, only to be killed by Neut, an agent of
Immortus. It was later shown that Gilgamesh is alive and once again associated with his fellow Eternals. He had lost his memory because a reality change created by Sprite and had begun working as a strongman in Brazil. ==Powers and abilities==