Chronos

Time has a way of bringing certain figures back into focus, and Chronos — who stepped onto the page in 1987's Strange #213, courtesy of Tom DeFalco, Ron Frenz, and Brett Breeding — is one of the Marvel Universe's more intriguing Copper Age presences. Published under Panini France, this character's catalog footprint spans a striking 34 years, turning up across titles like Nous sommes les Éternels and Nova in select but memorable company. Sharing pages with cosmic heavyweights like Thanos and Starfox, as well as powerhouses such as Miss Hulk and Hercules, Chronos clearly orbits the grander, more mythic corners of the Marvel cosmos. A rare find for the dedicated collector, this is exactly the kind of character whose modest appearance count only adds to the appeal of tracking them down.