Jason Wyngarde

Jason Wyngarde, the mutant illusionist known as Mastermind, possesses the ability to cast incredibly convincing mental illusions, making targets see, hear, and experience events that are entirely fabricated. He first surfaced as a member of Magneto's Brotherhood of Evil Mutants, using his powers to deceive and manipulate enemies of mutantkind.

Born in the pages of The X-Men #4 back in 1964, Jason Wyngarde is a Silver Age original — conjured by the legendary duo of Stan Lee and Jack Kirby at the very dawn of Marvel's mutant mythology. He's woven into the fabric of X-Men history, sharing those early adventures with foundational figures like Scott Summers, Jean Grey, Warren Worthington III, and Charles Xavier himself. With 155 catalog appearances spanning an remarkable 61 years — 15 of them recognized as key issues — this is a character whose presence in the X-Men universe has proven anything but fleeting. If you're serious about collecting the deep, rich history of Marvel's mutants, Jason Wyngarde is exactly the kind of figure whose long shadow across The X-Men, X-Men, and The Uncanny X-Men rewards closer attention.