Mastermind vs Mister Sinister Facts
Origin
  
  
Creator
Jack Kirby, Stan Lee
  
Chris Claremont, Marc Silvestri
  
Universe
Earth-616
  
Earth-616
  
Publisher
Marvel
  
Marvel comics
  
First Appearance
  
  
In Comics
The X-Men #4 - The Brotherhood of Evil Mutants
  
Uncanny X-Men #221 (September, 1987)
  
Comic Appearances
658 Issues
  
99+
1135 Issues
  
99+
Characteristics
  
  
Hair Color
Grey
  
Black
  
Eye Color
Brown
  
Black
  
Profile
  
  
Race
Mutant
  
Mutant
  
Citizenship
American
  
British
  
Marital Status
Single
  
Widowed
  
Occupation
Not Available
  
Geneticist, Criminal, biologist and mutant-supremacist
  
Base
Not Available
  
Many bases throughout the world including his State Home for Foundlings and the Center for Homo Superior Medical Care.
  
Relatives
Not Available
  
Not Available