Sharas was a female Nerazim protoss. Some time after the khalai's exile from Aiur, she was brought aboard the void ray Purity of Form to be trained in the handling of the ship's primary weapon, a prismatic beam fueled by the energy of both the Void and the Khala. Her teacher was the ancient dark templar Theromos, who had just lost his previous student, Althai, during a battle against the zerg.