1. Jedi who turned to the dark side and took Ulic Qel-droma with him, sought to destroy the Jedi Order after his corruption on Korriban and then traveled to Yavin 4 to control a massassi army who were originally followers of... 2. Naga Sadow was an ancient Sith Lord who was involved in a power struggle with Ludo Kressh when 2 republic explorers landed on Korriban. Sadow followed them with a Sith fleet and started the great hyperspace war, and eventually lost and came back to Korriban where he was ambushed by Kressh and forced to flee. 3. Malachor V