The Forgotten One (also known as Hero and Gilgamesh) is a fictional character appearing in American comic books published by Marvel Comics. He first appeared in The Eternals #13 (July 1977) and was created by Jack Kirby. He is a member of the near-immortal hidden race known as the Eternals. He has also been a member of the Avengers. Don Lee portrayed Gilgamesh in the Marvel Cinematic Universe, debuting in Eternals (2021).