Professor X

First Appearance: X-Men #1 (September, 1963)
Base of Operations: Formerly Utopia, San Francisco Bay, California; Genosha; Xavier Institute, Salem Center, Westchester County, New York; Imperial Palace, Chandilar, Shi'ar Empire; Columbia University, Manhattan, New York City, New York
Occupation: Mutant leader, mutant rights activist, geneticist, teacher, adventurer, heir, formerly headmaster, soldier (US Army)
Group Affiliation:: Formerly X-Men (founder; formerly teacher & leader), Illuminati, Genoshan Excalibur, Brotherhood of Evil Mutants (leader), Cadre K, Generation X (founder), Starjammers, The Twelve, New Mutants (founder, teacher & leader), United States Army, X-Corporation