Madam Medusa

Few characters can claim a Silver Age debut and a spot on both sides of the hero-villain divide, but Madam Medusa has done exactly that since her 1965 introduction in Fantastic Four #36, conjured into existence by the legendary duo of Stan Lee and Jack Kirby. She's tangled with and alongside some of Marvel's most iconic figures — Ben Grimm, Reed Richards, and Johnny Storm among them — and her dual membership in both the Fantastic Four and the Frightful Four speaks to a fascinatingly fluid allegiance that few characters can match. With four key collector issues to her name and a publishing history stretching an impressive six decades to 2025, she's far more than a footnote in Marvel history. Whether you're diving into classic Fantastic Four runs or hunting down the Inhumans Special, Madam Medusa rewards the curious reader with a rich, enduring presence that only the Silver Age could have launched.