Movie character: The dark crystal. SkekSo was the first and penultimate Skeksis Emperor, and counterpart to urSu the Master. Ruling the Skeksis Empire for over a thousand trine, he was the principal architect of the Alliance of the Crystal, the formal segregation of the Gelfling Clans and their ultimate destruction during the Garthim War. He was capable of displaying enough physical brutality to intimidate even the bravest challenger. Always has his staff that contains dark energy as a weapon.