Critolus Masse was a male Rodian who was a underlord of the criminal Darkwalker gang on Naboo during the Galactic Civil War. In 1.5 ABY, he was killed by a spacer employed as an officer of the Royal Naboo Security Forces during the rescue of Karl Eckener, who was held hostage by the Darkwalkers in their cave.
Critolus Masse appeared as a non-player character in the video game Star Wars Galaxies, a massively multiplayer online roleplaying game developed by Sony Online Entertainment and published by LucasArts, prior to the game's closure on December 15, 2011. Critolus Masse was added to the game as part of the "Legacy Quest" with the release of the "Publish 25," a.k.a. the "New Game Enhancements," on November 15, 2005.