Creator
Chris Claremont, Dave Cockrum
Bob Mcleod, Chris Claremont
Base
Chandilar, Shiar Galaxy; mobile throughout the Shiar Empire and surrounding galaxies.
(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