Curt Connors

Few supporting characters in Marvel history have cast as long a shadow as Curt Connors, who first stepped onto the page in The Amazing Spider-Man #6 back in 1963 — a Silver Age debut courtesy of the legendary Stan Lee and Steve Ditko. Over more than six decades and 262 catalogued appearances, he's proven himself one of the most enduring figures in Spider-Man's world, a man whose story clearly resonates far beyond a single era. His ten key-issue appearances signal just how pivotal he's been to the Marvel universe, and the company he keeps — sharing pages with the likes of Doctor Octopus, Captain America, and J. Jonah Jameson — places him squarely at the heart of Marvel's most iconic storytelling. If you're building a serious Spider-Man collection, Curt Connors is a thread that runs through decades of it.