Madame Monstrosity

Madame Monstrosity debuted as an antagonist in Marvel's Spider-Boy series, opposing the young hero Spider-Boy in his earliest adventures. Her precise origins and abilities remain largely unrevealed, establishing her as a mysterious threat in his rogues' gallery.

Fresh from the Modern Age Marvel universe, Madame Monstrosity burst onto the scene in Spider-Boy #1 (2024), making an immediate impression in one of Marvel's most energetic recent launches. With only a handful of appearances so far, she's already carved out a presence alongside Spider-Man, Spider-Boy, and a compelling cast of characters that signals she's no background player. Still early in her comics life, Madame Monstrosity is exactly the kind of villain-or-enigma worth tracking from the ground floor — the collectors who spot a compelling new character in their debut year are always glad they did.