Giant-Man

Few Silver Age Marvel characters carry the weight — literal and figurative — that Giant-Man does. Debuting in The X-Men #2 in 1963 under the legendary creative hands of Stan Lee and Jack Kirby, this towering figure quickly became a fixture across Tales to Astonish and the pages of The Avengers, where he's stood shoulder-to-shoulder with the likes of Captain America, Iron Man, and the Wasp across more than six decades of Marvel history. As a proud Avenger, Giant-Man has racked up 388 catalog appearances — 35 of them recognized as key issues — making him one of the more consequential figures of the Marvel Silver Age and a genuine collector's quarry. If you want a character whose roots run deep into the foundational era of the House of Ideas and whose presence has echoed all the way to 2026, Giant-Man is absolutely worth your attention.