Darth Sansus, born Alno Doon, was a Sith Lord that was of great importance during the Sith's struggle to return from The Grand Sith Purge. He was a former Jedi Knight that turned to the Dark Side by the seduction of Darth Prone. Prone became his master and brought the young Jedi to become a master of the Dark Side of the Force. The young Sith soon became a Sith Lord along with becoming a Sith General and Sith Battlemaster. He would lead the Sith to victory after victoy during the war. Along with Darth Cognitum, he led armies all throughout the Galaxy, opposing those who rebeled against them.