Schepper
Arnold Drake, Don heck
Gerry Conway, Jack Kirby, John buscema, Stan Lee
Baseren
Serval Industries, Virginia; voorheen X-Factor Onderzoeken Headquarters, Starjammer; Xavier Institute for Higher Learning, Salem Center, Westchester County, New York; Genosha; X-Factor HQ, Washington DC, Maryland; Mutant Research Center, Muir Island;
Baxter Building, New York, New York (voorheen) Four Freedoms Plaza; Pijler 4; Massachusetts Academy