Thull Wulain
Thull Wulain, a Sun Guard of the male persuasion, achieved the position of Supreme Sun Guardian through assistance from the Sith, subsequently pledging allegiance to the Sith Lord known as Darth Sidious.
Sources
- The article "Star Wars: The Essential Guide to Warfare Author's Cut, Part 2 - Ancient Coruscant" located on StarWars.com (with a backup link provided) serves as the initial source mentioning him.