M

A mysterious and enigmatic mutant who debuted alongside the founding roster of Generation X, M is a young woman whose true background and real name remained shrouded in secrecy from her earliest appearances.

Debuting in the pages of the Generation X preview in 1994, M is one of the standout figures to emerge from Marvel's Copper/Modern Age mutant boom — a character whose presence helped define a generation of young heroes. Created by Scott Lobdell and Chris Bachalo, she arrived alongside a fresh roster of compelling figures including Synch, Jubilee, and Sean Cassidy, and her appearances across Generation X and beyond stretch a solid two-plus decades. With a key collector issue to her name and a place in Best of Marvel retrospectives, M is precisely the kind of character that rewards readers who dig deeper into the rich, sprawling tapestry of '90s Marvel mutant storytelling.