Star Wars: 10 Greatest Sith Lords You'll Never Forget

3. Exar Kun

During his time as a Jedi, Exar Kun displayed a curiosity into teachings forbidden by the Jedi Order, his curiosity was so great he eventually chose to leave the order after his training was completed. He left in pursuit of knowledge of the ancient Sith, this led him to the planet of Onderon where he awoke the spirit of the Sith Lord Freedon Nadd.

Like so many Jedi before him Kun gave in to the power of the dark side and became Nadd's apprentice. When his training was complete Kun destroyed Freedon Nadd's spirit and set off to dominate the galaxy. The first thing Kun did was travel the galaxy eliminating Sith cults and any who could oppose him, this led him to find Ulic-Qel Droma a warlord of one of the cults he planned to destroy. Both Ulic and Exar were visited by eh spirit of Marka Ragnos who brought them both to the dark side.

After this Kun and Qel Droma formed the Brotherhood of the Sith and began a war against the Republic and the Jedi Order. Even while he was waging war Kun's hunt for ancient Sith knowledge never stopped, this led to hi m finding an ancient Sith holocron which he used to corrupt Jedi and turn them to the dark side.

At the height of his power Kun arrived on Coruscant where he killed the Supreme Chancellor and duelled with the Grand Master of the Jedi Order and even managed to free his apprentice Ulic-Qel Droma from imprisonment. Kun was eventually defeated on Yavin 4 after being betrayed by Ulic, Kun tried to separate his spirit from his body but the Jedi ensure that he was trapped within his temple on Yavin forever.