Adventurer
Geneticist
Headmaster of Xavier Institute
Leader of the X-Men
Mutant Rights Activist
Soldier
Teacher
Note: Xavier is paralyzed below the waist and is unable to walk under normal physical circumstances. Ability to detect other mutants is augmented by the mutant detection systems Cerebro and Cerebra.
Cerebra: Long range mutant detecting system capable of detecting the brain patterns of mutants at any place on Earth.
Cerebro: Short range mutant detecting system.
Wheelchair: Transportation necessitated by paraplegic condition.
Legion
Master Mold
Proteus
Pyro
Stryfe
X-Cutioner
Excalibur Vol. 2
Professor Xavier and the X-Men
Uncanny X-Men
X-Men Vol. 2
Enrolling in the graduate-studies program at Oxford University, Xavier met and fell in love with a young Scotswoman named Moira Kinross. Of all their classmates, Charles and Moira were the only ones who understood the ultimate implications of genetic mutation. Their passionate discussions on the subject gave way to an equally passionate romantic relationship, and the two planned to be married. Standing in their way was Moira's former boyfriend, Joe MacTaggert, a lance corporal in the Royal Marines -- a bully and thug, just like Cain. In MacTaggert's eyes, Xavier was an effete, good-for-nothing intellectual. To prove him wrong and validate himself to his rival in terms that he would understand, Xavier enlisted in the military after completing his studies at Oxford.
His first day in combat, he thought he would go mad. Nothing could have prepared him for the mental horrors he would experience as his fellow soldiers were maimed and killed around him. Somehow finding a way to cope, Xavier became something of a legend in the area of search and rescue, being able to secretly use his power to pinpoint lost soldiers.
Crushed when Moira broke off their engagement without explanation, Xavier traveled abroad after leaving the Army. While in Cairo, Egypt, he clashed with Amahl Farouk (Shadow King), a mutant capable of summoning forth the darkness in the souls of others. This confrontation led to Xavier's decision to devote his life to protecting humanity from evil mutants bent on world domination and safeguarding innocent mutants from human oppression.
Traveling to Israel, Xavier fell in love with an Israeli diplomat named Gabrielle Haller. Also, he befriended fellow drifter Erik Magnus Lehnsherr, the mutant who would become his greatest enemy and rival: the genetic terrorist known as Magneto, Master of Magnetism. Xavier espoused his optimistic belief that Homo sapiens and Homo superior could coexist, but Lehnsherr foresaw mutants as the new minority to be persecuted and hunted because of their differences.
Leaving Israel for London Xavier was unaware that Haller was pregnant with his son. Only years later did he learn of his connection to the psionically powered mutant known as Legion. While in London, he renewed his friendship with Moira, who had became a renowned geneticist after marrying Joe MacTaggert. The two began to discuss the idea of founding a school for mutants at his estate in New York state. En route to the United States, Xavier encountered an alien scout calling himself Lucifer. The altercation with the alien left Xavier's legs crippled.
Returning to his ancestral home Xavier began to establish his institute for gifted children. His first student was a young Jean Grey, who had been traumatized by the dying thought of her best friend. After his success with Grey he began to locate young mutants, enrolling them in his school. The first of his students: Cyclops, Angel, Beast & Iceman would join his first student Marvel Girl as the X-Men. In time his charges would be supplemented by new groups of students to fulfill the dream of mutants and humans living together in peace and harmony, the dream of Professor X.