Creator
Bob Mcleod, Chris Claremont
  
George Pérez, Marv wolfman
  
In Comics
Marvel Graphic Novel #4 - The New Mutants: Renewal
  
"DC Comics Presents #26 (October, 1980)"
  
Base
(current) X-Factor Investigations, New York City (former)Professor Xaviers School of Gifted Youngsters, Salem Center, Westchester County, New York; Muir Island, Scotland; X-Factor headquarters, Embassy Row, Washington, D.C.; X-Factor Headquarters, New Yo
  
Formerly Titans Island, New York City; Titans Tower, San Francisco