Thanos (Earth-2149)

Little is detailed about Thanos’ life before the zombie plague arrived in Reality-2149, however it can be presumed that it followed much the same path as his Earth-616 counterpart up to a certain point, as Nova once mentioned that Thanos invaded Earth at one point.^[2] Based on how he was infected, Thanos doesn't appear to have started the Infinity Gauntlet.

Forty years after the contagion began infecting this reality, Thanos was infected and joined up with the Zombie Galacti at the edge of the known universe. It seemed that they had consumed most of the universe. He blamed Hulk for eating more than his fair share and died when Hulk crushed his head with a palm-clap, to which Hulk justified that he now had a reason to eat for two.^[1]