Ultimo
Master of Doom, from Knights of the Galaxy
- Also known as
When he first encountered the Galaxy Knights, Ultimo forced them to play his Game of Doom. When next he appeared, he transported the Knights back to the 20th century, then set out to conquer the galaxy in the 30th century.
Appearances
- Mystery in Space #6 — 1952-02-00
- Pulp Fiction Library: Mystery in Space #[nn] — 1999-11-00