What You Should Know: An original member of the X-Men, bald, paraplegic Professor X, aka, Dr. Charles Xavier, is the founder of Xavier’s School for Gifted Youngsters, a scientific genius, and the putative leader of the group. He is an extraordinarily gifted telepath who can read and control minds. He uses his powers to promote peaceful co-existence between the mutually distrustful human and mutant races.
In the Marvel comics mythology Charles Xavier is the son of a Brian Xavier, a nuclear scientist and Sharon, a housewife. When his biological father dies, Sharon Xavier remarries Kurt Marko, a colleague of Brian’s, who brings his son Cain along and into the family. Sharon later dies and a fight between Xavier and Cain results in a lab fire that kills Kurt Marko. Cain never forgives Xavier and wrongfully blames him for his father’s death. Cain later is transformed into the Juggernaut (played by Vinnie Jones in X-Men: The Last Stand, though there appears to be no familial connection in that mythology).
Charles fights in the Korean War alongside his stepbrother Cain, and, after the war is over, works as an orderly in a clinic for Holocaust survivors in Haifa, Israel. There he meets Eric Lehnsherr, the future Magneto. Xavier realizes that Lehnserr is a very powerful mutant and that, though fast friends, they have very different views on the mutant-human relationship. Lehnsherr sees in humans their potential to commit genocide, something he fears will be done with mutants. The friends part ways.
Xavier travels to the Himalayas where he encounters an alien named Lucifer who is planning a full-scale invasion of the planet. Charles thwarts Lucifer’s plans and the alien retaliates by dropping a stone block on him, leaving him forever crippled. Returning to the United States, Xavier founds his School for Gifted Youngsters. His first students are Beast, Iceman, Angel, Cyclops and Marvel Girl; the original X-Men. He also creates Cerebro, a special machine that augments his powers and allows him to detect mutants the world over.