This unnamed Sith was a member of the Sith Order of Decreto, and the apprentice of Guerreiro until 19 BBY. He was killed by Wyyrlok following the latter's escape from Order 66. Wyyrlok would soon succeed the Sith warrior as Guerriero's apprentice, and help his Master become Dark Lord of the Decreton Empire.
This warrior bore an orange-hued lightsaber.