Gordon Keefer

A Silver Age creation of Stan Lee and Don Heck, Gordon Keefer made his debut in the pages of The Avengers #12 back in 1965, stepping into Marvel's universe at one of its most electric moments. Affiliated with the Avengers, he's crossed paths over the decades with a wonderfully eclectic cast — Ape Man, Frog Man, and Francois Le Blanc among them — and his appearances stretch across titles like The X-Men and Daredevil, including the legendary Frank Miller and Klaus Janson run. With a presence in the catalog spanning all the way from 1965 to 2021, Keefer is a quiet thread woven through more than half a century of Marvel history — the kind of deep-cut discovery that makes longtime collectors smile.