Sully Tigereye was a Trunsk who had been a former Elite Commando infiltrator unit member with the New Republic serving directly under Colonel Andrephan Stormcaller and who followed him to the mercenary group, Red Moons. At some point in his life, possibly before joining the New Republic, he had been caged, and had possibly been a slave, which was his personal motivation for joining Red Moon. When he learned of the death of his good friend, Lex Kempo, he was saddened.