M

M (Monet St. Croix) - Uncanny X-Men #316 (September 1994)

Sister of Emplate and the M twins. Born in Yugoslavia, but raised in Monaco. Comes from a rich family. Member of Generation X, X-Corps, X-Corporation and X-Factor. Transformed by Emplate into Penance, with the M twins impersonating M. Those transformations were later reversed. Kept her powers after M-Day.

EMPLATE

EMPLATE (Marius St. Croix) - Generation X #1 (November 1994)

Brother of M and M twins. Transformed M into Penance. Banished by the M twins in a separate dimension. Briefly merged with M twins into M-Plate. Retained his powers post-M-Day.