Mutant-Master

Marvel

Also known as

First appearance is in The X-Men (Marvel, 1963 series) #37. An alien of unknown origin who disguised himself as a homo superior in order to enslave mankind.

Appearances

The X-Men #37 — 1967-10-00
The X-Men #38 — 1967-11-00
The X-Men #39 — 1967-12-00
The X-Men #138 — 1980-10-00
Classic X-Men #44 — 1990-02-00
Marvel Legacy: The 1960s Handbook #1 — 2006-02-00
Marvel Masterworks: The X-Men #4 — 2011-11-23