Joe Kubert, Robert Kanigher
Bob Mcleod, Chris Claremont
tidak tersedia
(Saat ini) Investigasi X-Factor, New York City (mantan) Profesor Xaviers School of Gifted Youngsters, Salem Pusat, Westchester County, New York; Muir Island, Skotlandia; markas X-Factor, Embassy Row, Washington, DC; X-Factor Markas, New Yo