Creator
Chris Claremont, John Byrne
  
Herb Trimpe, John Romita, Len Wein
  
In Comics
X-Men #120 (April, 1979)
  
Incredible Hulk #180
  
Occupation
Former terrorist, adventurer, teacher, businessman, novelist, professional skier, trapeze artist, thief
  
Adventurer, instructor, former bartender, bouncer, spy, government operative, mercenary, soldier, sailor, miner
  
Base
-
  
Xavier Institute, Salem Center, Westchester County, New York; Avengers Tower, New York City