Mastermind vs Killer Croc Facts
Creator
Jack Kirby, Stan Lee
Gene Colan, Gerry Conway
Universe
Earth-616
New earth
Publisher
Marvel
DC comics
In Comics
The X-Men #4 - The Brotherhood of Evil Mutants
Batman #357 (March, 1983)
Citizenship
American
American
Marital Status
Single
Single
Occupation
Not Available
-
Base
Not Available
Gotham City
Relatives
Not Available
Not Available