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Real Name
Monet Yvette Clarisse Maria Therese St. Croix
First Appearance
Uncanny X-Men #316 (September, 1994)
Scott Lobdell, Chris Bachalo
Team Affiliations
Generation X, X-Corporation: Paris, X-Corps, X-Factor Investigations, X-Men
M-Plate, Penance, White Queen
Base of Operations
New York City
Superhuman strength, speed, agility, dexterity, reflexes, coordination, balance, vision, hearing, and endurance, Accelerated healing factor, Supersonic Flight, Telekinesis, Telepathy, Ability to perceive mutant auras
Skills and Abilities
Genius-level intellect, Fighting Experience

M is a superheroine in the Marvel Universe and a member of Generation X, X-Factor and the X-Men.


After her evil brother used her powers to trap her in another body, Monet St. Croix eventually freed herself and became a superhero, fighting for mutant rights.


Monet St. Croix was born in Sarajevo, Bosnia to Ambassador Cartier St. Croix and Jamila St. Croix, a descendant of Algerian royalty.  She was raised with her brother Marius and her sisters Claudette and Nicole, and was considered her father's favorite child.  When Marius mutant powers manifested, he found himself with an insatiable hunger for the genetic marrow of mutants, which resulted in him killing Jamila.  Cartier exiled his son and Marius went on to travel to other dimensions, gaining power from the people his killed due to his unique mutant power.

Marius eventually returned to his home, having learned dark magics and renaming himself Emplate and decided to ask Monet to help him in conquering another dimension. Monet refused and in return Emplate transformed her into a red razor-skinned creature named Penance. Penance fled and Nicolle and Claudette, unable to find their sister, believed she was killed by Emplate. The twins used their own strange power, to combine into a single person, to pose as their sister to prevent their father from having a complete breakdown.