Mister Mxyzptlk vs Mastermind Facts
Creator
John Byrne
Jack Kirby, Stan Lee
Universe
New earth
Earth-616
Publisher
DC comics
Marvel
In Comics
Superman Vol 2 #11
The X-Men #4 - The Brotherhood of Evil Mutants
Citizenship
Unknown
American
Marital Status
Single
Single
Occupation
-
Not Available
Relatives
Not Available
Not Available