Madame Xanadu vs Hammerhead Facts
Origin
  
  
Creator
David Michelinie, Val Mayerik
  
Gerry Conway, John Romita
  
Universe
Earth-One, New Earth
  
Earth-616
  
Publisher
DC
  
Marvel
  
First Appearance
  
  
In Comics
Doorway to Nightmare #1 - Doorway to Nightmare
  
The Amazing Spider-Man #113 - They Call the Doctor...Octopus!
  
Comic Appearances
310 Issues
  
99+
295 Issues
  
99+
Characteristics
  
  
Hair Color
Black
  
Black
  
Eye Color
Green
  
Blue
  
Profile
  
  
Race
Human
  
Cyborg
  
Citizenship
British
  
American
  
Marital Status
Single
  
Single
  
Occupation
Not Available
  
Not Available
  
Base
Not Available
  
Not Available
  
Relatives
Not Available
  
Not Available