Jean Elaine Grey FIRST PART
First appearance 1963
Jean Elaine Grey is the second daughter of John and Elaine Grey. She had an older sister, Sara Grey-Bailey. John Grey was a teacher at Bard College in upstate New York. Depictions of Jean's childhood and her relations with her family have shown a stable, loving family life growing up. Jean's mutant powers of telepathy and telekinesis first manifest when her best friend is hit by a car and killed. Jean mentally links with her friend and nearly dies as well. The event leaves her comatose, and she is brought back to consciousness when her parents seek the help of powerful mutant telepath, Charles Xavier. Xavier blocks her telepathy until she is old enough to be able to control it, leaving her with access only to her telekinetic powers. Xavier later recruits her as a teenager to be part of his X-Men team as "Marvel Girl", the team's sole female member. After several missions with the X-Men, Xavier removes Jean's mental blocks and she is able to use and control her telepathic powers. She begins a relationship with teammate Cyclops. During an emergency mission in space, the X-Men find their shuttle damaged. Jean pilots the shuttle back to Earth, but is exposed to fatal levels of radiation. Dying, but determined to save Cyclops and her friends, Jean calls out for help and is answered by the cosmic entity, the Phoenix Force. The Phoenix Force, the sum of all life in the universe, is moved by Jean's dedication and love and takes the form of a duplicate body to house Jean's psyche. In that instant, the Phoenix Force is overwhelmed and believes itself to be Jean Grey and places Jean's dying body in a healing cocoon. The ship crashes in Jamaica Bay, with the other X-Men unharmed.
Jean Grey is an Omega-level mutant, and at her highest and strongest potential was fully merged with the Phoenix Force and with it was able to defeat even Galactus.