Here are the ancient Sith i know about: Exar Kun, Ulic-Qel Droma, Revan, Malak, and that's about it.Here is the info i know. I know that Kun was, according to himself, "The greatest Dark Lord of the Sith" He also had a double-bladed lightsaber, and when Ulic fell to the Dark Side Kun was his master. Later Kun was killed at the end of the Sith War, when the Jedi invaded Yavin 4, and he killed all the Massaassi so he could keep his soul in the Massasssi Temple. Finally Kun communicated with some of Luke Skywalker's new Jedi students. The first one he communicated with was a human named Gantoris. Gantoris constructed a purple lightsaber under Kun's tutelage, but after a while Gantoris understood he was beginning to be possesed by Kun, so he attacked the spirit, who slaughtered him. Kun later found Kyp Durron, and began teaching him. That is so far all i know about Exar Kun. Now for Ulic-Qel Droma. Ulic was at one time a Jedi Knight, who thought he could conquer the Dark Side from within. He tried to, but he fell to the Dark Side completely. He later came back to the Light Side and he destroyed the Dark Reaper. When the Dark Reaper was going to be arisen, Ulic's spirit taught Anakin Skywalker how to protect himself from the Dark Reaper's destruction for a while. As Anakin battled the Dark Reaper Ulic's spirit helped Anakin to finally destroy the Dark Reaper. That is all I know about Ulic-Qel Droma. As for Revan and Malak, they to were at one time Jedi Knights, and good friends. THey thought the Jedi ways were wrong so they joined the Dark Side and became Sith. They attacked and killed most of the Mandalorians, then tried to defeat the Jedi. Bastila Shan and other Jedi then attempted to defeat Revan. They boarded his flagship, and attacked. Revan killed all the Jedi, but then turned to fight Bastila. At that moment Malak chose to betray his friend and Master, Revan. Malak fired on the ship, hoping to kill Bastila and Revan, so he would be the supreme Dark Lord of the Sith instead of Revan. Revan went down, though he wasn't dead. His memoiry was wiped then he again became a Jedi. The new Revan met some other people, Bastila included. Bastila never told him who he really was, so he didn't know.Revan met up with Malak finally, and he told Revan who he really was. Revan was utterly stunned. Bastila told Revan to leave, that she could defeat Malak. She didn't suceed, and fell to the Dark Side. REvn and some others later attacked Malak. Revan, alone, met up with Bastila and battled her. He brought her back to the Light Side. Revan than met up with Malak alone. Him and Malak battled, and Revan won. Malak died, and the galaxy was tipped into the Light, for now. If you have any other info about any other ancient Sith, KOTOR 2 as well, please contact me with it, it would be appreciated, thanx.