Creator
Al Plastino, John Byrne, Robert Bernstein
Bill Sienkiewicz, Chris Claremont
In Comics
Superman Vol 2 #1
(January, 1987)
New Mutants #25 (March, 1985)
Base
Mobile, though he generally operates out of Metropolis
formerly Ruth Aldines mind, Utopia, San Francisco Bay, California; Westcliffe, Colorado; "No-Time"; Moira MacTaggarts Mutant Research Center, Muir Island, off the coast of Scotland; Haifa; Paris, France