Iron Fist (Daniel Thomas Rand-K'ai) Created by Roy Thomas and Gil Kane, Iron Fist first appeared in Marvel Premiere #15 (May 1974)
Poison Ivy (Pamela Lillian Isley) Created by Robert Kanigher and Sheldon Moldoff, Poison Ivy first appeared in Batman #181 (June 1966).
The Watchmen Nite Owl (Dan Dreiberg) Rorschach (Walter Kovacs) Silk Spectre (Laurie Juspeczyk) Dr. Manhattan (Jon Osterman) Ozymandias (Adrian Veidt) Comedian (Edward Blake) Created by writer by Alan Moore and illustrators by Dave Gibbons and …
Doctor Strange Created by writer/editor Stan Lee and artist/co-plotter Steve Ditko, Doctor Strange first appeared in Strange Tales #110 (July 1963).
Thor Created by editor-plotter Stan Lee, scripter Larry Lieber, and penciller Jack Kirby, Thor first appears in Journey into Mystery #83 (Aug. 1962).
Omega Red (Arkady Rossovich) Created by Jim Lee and John Byrne, Omega Red first appeared in X-Men #4 (vol. 2, January 1992).
Elektra (Elektra Natchios) Created by Frank Miller, the character first appeared in Daredevil #168 (January 1981).
The Juggernaut (Cain Marko) Created by writer Stan Lee and artist Jack Kirby, The Juggernaut first appears in X-Men #12 (July 1965).
Jubilee (Jubilation Lee) Created by writer Chris Claremont and artist Marc Silvestri, Jubilee first appeared in Uncanny X-Men #244 (May, 1989)
Professor X (Charles Xavier) Created by writer Stan Lee and artist Jack Kirby, Professor X first appears in X-Men #1 (Sept. 1963).