Lady Mastermind

Lady Mastermind is a supervillain appearing in American comic books published by Marvel Comics. Created by writer Chris Claremont and artist Salvador Larroca, the character first appeared as Regan Wyngarde in X-Treme X-Men #6 (December 2001).

Regan Wyngarde is the daughter of Jason Wyngarde, the original Mastermind. Her half-sisters are Martinique Jason, the second Mastermind, who now shares her codename, and the X-Men's Pixie. Like her sister and father, Regan possesses the ability to cast telepathic illusions. Although the character originally appeared as a villain, she would later have a brief stint as an X-Man, betraying the X-Men a short time after joining them.