X-Men #1 (September, 1963)
New Mutants #98 (February, 1991)
Leader of mutant race, adventurer, headmaster, former student, radio announcer
Mercenary; former enforcer, government operative, sumo wrestler, soldier, assassin, anti-hero, others
Xavier Institute, Salem Center, Westchester County, New York
Cavern-X, Sedona, Arizona, Mobile