Mastermind
Jason Wyngarde
Created by Stan Lee, Jack Kirby
First Appearance
Appearances
103
Primary Team
Brotherhood of Evil Mutants
Debut Era
1960s
A founding member of the Brotherhood whose illusion-casting powers could reshape perceived reality itself. Mastermind's greatest — and most infamous — act was his psychic seduction of Jean Grey on behalf of the Hellfire Club, slowly corrupting her into the Black Queen and triggering the emergence of Dark Phoenix. Few villains have had a more lasting impact on the X-Men mythos.
Appearances Over Time
Series
Most Appearances By Series
The X-Men (1963) 20 issues
Classic X-Men (1986) 12 issues
X-Men Unlimited (1993) 6 issues
The Uncanny X-Men (1981) 5 issues
X-Men The Hidden Years (1999) 4 issues
Excalibur (1988) 4 issues
X-Man (1995) 4 issues
X-Men (1991) 4 issues
X-Men (2010) 4 issues
The Uncanny X-Men Omnibus (2006) 3 issues
Events
Event Participation
First Appearance
The X-Men #4
March 1964
Real Name
Jason Wyngarde
Created By
Stan Lee, Jack Kirby