M (Marvel Comics)

M, or Penance (Monet Yvette Clarisse Maria Therese St. Croix), is a superheroine appearing in American comic books published by Marvel Comics. First appearing in The Uncanny X-Men #316 (September 1994), the character was created by Scott Lobdell and Chris Bachalo. Monet St. Croix is a mutant with a variety of superhuman abilities, including enchanced physical and mental capabilities, flight, and telepathy.

The character is primarily depicted in association with the X-Men, also having joined superhero teams such as Generation X and X-Factor Investigations. The character and her siblings have a complicated history in the comics, with her brother Emplate transforming her into the mute Penance and her sisters taking her place, before being freed.