Darth Wyyrlok III is the secondary antagonist of Star Wars: Legacy and Star Wars: Legacy War and a major antagonist in the later instalments of the Star Wars Legends continuity. He was a male Chagrian Sith Lord and master who was a high-ranking member and Sith Master of the One Sith.
He was a loyal and devoted servant of Darth Krayt and was very close to him as part of a family that served him. He would later betray him, however, and become the new ruler of the Sith Empire and the One Sith as as part of his true ambitions.