Darth Colak also known as Emperor's Rage was a Human male Sith Lord of the Sith Empire. Born on the Empire Capital of Balstros, Colak was trained in the ways of the Dark Side of the Force at the Sith Academy in Clou City. The Emperor sensed he was strong in the Force, meant that even the Emperor thought he was worthy to be his Apprentice. Being the Emperor's Rage Colak believed he was one of the most powerful Sith Lords in the Empire and was loyal to the Empire, he respected his master and deeply feared him.