the school, but Erik refuses Xavier's offer to stay and help teach. Peter decides not to tell Erik yet that he is Erik's son. Using confiscated Sentinels, Hank and Raven train the new X-Men recruits: Scott, Jean, Ororo, Kurt, and Peter. In a post-credits scene, men in black suits visit the Weapon X facility to retrieve an X-ray and a blood sample marked "Weapon X", on behalf of the Essex Corporation. Cast James McAvoy as Professor Charles Xavier: A pacifist mutant and the world's most powerful telepath, who is the founder of Xavier's School for Gifted Youngsters and leads the team of mutants known as the X-Men, in order to protect humankind and battle against the deadly enemy within. During the latter part of the film's production, McAvoy shaved his head for the role. Michael Fassbender as Erik Lehnsherr / Magneto: A mutant Auschwitz survivor with the ability to control magnetic fields and manipulate metal, who was once Xavier's closest ally and best friend, until his belief that mankind and mutantkind would never coexist led to their separation. He is globally infamous for attempting to assassinate U.S. President Richard Nixon on live broadcast 10 years prior. Bill Milner appears in archival footage as a Young Erik. Jennifer Lawrence as Raven / Mystique:A mutant with shapeshifting abilities, globally renowned for saving Nixon's life 10 years prior. She was once Xavier's closest ally and his adoptive sister. Lawrence said, "she hears about what happened to Erik and she wants to seek him out and help him". Oscar Isaac as En Sabah Nur / Apocalypse: Born in ancient times, and presumably the world's first mutant, he has a variety of destructive superhuman abilities, including telekinesis, cyberpathy, teleportation, and the ability to augment other mutants' abilities, as a result of being able to amass powers when transferring his consciousness from one body to another. Isaac described Nur as the "creative-slash-destructive force of the Earth". He added, "When things start to go awry, or when things seem like they're not moving towards evolution, [En Sabah Nur] destroys those civilizations." Isaac had to go through extensive makeup and prosthetics applications, and wore high-heeled boots to appear taller and a 40-pound suit. The full costume was uncomfortable, particularly in the humid environment of the outdoor scenes, which forced Isaac to go to a cooling tent between takes. Nur's previous old-form (seen at the beginning of the film)