Joker vs Mister Sinister Facts
Creator
Bill Finger, Bob Kane, Jerry Robinson
Chris Claremont, Marc Silvestri
Universe
New earth
Earth-616
Publisher
DC comics
Marvel comics
In Comics
Batman #1 (Spring 1940)
Uncanny X-Men #221 (September, 1987)
Citizenship
American
British
Marital Status
Widowed
Widowed
Occupation
-
Geneticist, Criminal, biologist and mutant-supremacist
Base
Arkham Asylum, Gotham City; Ha-Hacienda
Many bases throughout the world including his State Home for Foundlings and the Center for Homo Superior Medical Care.
Relatives
Jeannie (wife, deceased); Unborn son (deceased); Melvin Reipan (cousin, deceased)
Not Available