Professor Va-Kox
Kryptonian
- Also known as Professor Vakox
Professor Va-Kox, a mad geneticist, was sentenced to 50 Kryptonian sun-cycles (68.5 Earth years) for tossing a test-tube full of his life force experiment into the Great Krypton Lake, creating a huge mutated monster.
Appearances
- Superman #158 — 1963-01-00
- Superman #162 — 1963-07-00
- Superman's Pal, Jimmy Olsen #73 — 1963-12-00
- Action Comics #309 — 1964-02-00
- Superman's Pal, Jimmy Olsen #86 — 1965-07-00
- Superman #179 — 1965-08-00
- DC Special #3 — 1969-04-00
- The Superman Family #190 — 1978-07-00
- The Best of DC #36 — 1983-05-00
- Who's Who: The Definitive Directory of the DC Universe #18 — 1986-08-00
- Superman: Phantom Zone #[nn] — 2013-09-00