Darth Rageus or known before as "Boosa Kjucask" was a Sith Assassin that joined the Empire during the Imperial Era. He was a strong warrior that only did missions in high-class. He used to say: "Doing an act of the lowest garanties, is like killing someone for no reason." Then he meant that to "kill" someone for a low price, is like killing no one at all. He was from the planet of Xewasku and he was killing both his parents after only 4 years old.