Real Name: Nicole & Claudette St. Croix.
Current Group Affiliation: None
Former Group Affiliation: Generation X
1st Appearance (as M I): UNCANNY X-MEN#316 (1994)
Known Superhuman Powers: The twins possess the power the combine to form a single being. Together, they switched places with their sister Monet and they became Penance II. As Penance, they have razor-sharp skin and claws.
Other Aliases: M I