Hammer

Debuting in the thick of Marvel's Bronze Age in The Incredible Hulk #182 — a key issue courtesy of Len Wein and Herb Trimpe — Hammer is one of those street-level Marvel figures whose first appearance alone makes collectors sit up straight, sharing those early pages with none other than Logan himself. Over a span stretching from 1974 to 2007, this character carved out a niche in the grittier corners of the Marvel Universe, turning up across titles like Daughters of the Dragon, She-Hulk, and Spider-Woman alongside a colorful cast that includes Anvil, John Anvil, and Leroy Jackson. It's a career that speaks to a particular kind of Marvel staying power — the kind of character who keeps resurfacing wherever the action is rough and the company is dangerous.