Origin
Gus was a security guard at the Metropolitan Museum of Art in New York City.
Major Story Arcs
Gus was on duty at the Museum when he seemed to have been hypnotised and smashed the protective casing which had an amulet encased in it. He then proceeded to pick up the amulet, and put it on. As he put on the amulet, he was suddenly possessed by Kulan Gath, who used Gus as a way to free himself from the amulet. After Spider-Man and Red Sonja defeated Kulan Gath, Gus was returned to normal.