Eon

Eon is an ancient cosmic entity and guardian of the universe, tasked by the universe itself with selecting and empowering a Protector of the Universe to defend against threats to all life. It first encountered Mar-Vell, ultimately bonding him to that sacred cosmic role.

Born in the cosmic depths of Marvel's Bronze Age, Eon made their first mark in Jim Starlin's landmark Captain Marvel #30 in 1974 — a debut that placed this enigmatic entity squarely in the company of some of Marvel's most cosmic heavyweights, sharing adventures with the likes of Quasar, Thanos, and Captain America across nearly five decades of storytelling. With 39 catalogued appearances and two collector-significant key issues to their name, Eon is a figure whose influence quietly threads through Marvel's grandest cosmic tapestries, appearing most prominently in Quasar alongside Wendell Vaughn and Kayla Ballantine. For readers drawn to the vast, strange corners of the Marvel universe — where myth and cosmos collide — Eon is one of those rewarding discoveries that rewards the dedicated explorer.