Jean Grey first appeared in X-Men #1 (1963), created by Stan Lee and Jack Kirby. As the sole female member of the original X-Men lineup—alongside Cyclops, Beast, Angel, and Iceman—Jean was introduced as Marvel Girl. Though initially written in a limited capacity, her powers of telekinesis (and later, telepathy) positioned her as a vital part of the team. From the beginning, Jean was the heart of the X-Men, balancing the tensions between Cyclops’s leadership and Professor Xavi