We don't have a biography for Professor Paradox yet. Hang in there, or go ahead and contribute one.
Appearances
Ben 10: Ultimate Alien
Guest cast, played by David McCallum
- Episode 1x10: Ultimate Aggregor (Oct 10, 2010)
- Episode 1x16: The Forge of Creation (Nov 12, 2010)
- Episode 2x10: Ben 10,000 Returns (Apr 15, 2011)