Exar Kun

Exar Kun was a Sith Lord of The Old Republic era.

In-Universe Information
Exar Kun started out as a padawan of Jedi master Vodo-Siosk Baas. He trained alongside the Cathar couple Crado and Sylvar. Kun was an arrogant man who believed himself superior to his classmates in everything, whether that be the Force or the lightsaber. Eventually, he turned to the dark side and became a Dark Lord of the Sith. He also brought the double-bladed lightsaber to the attention of the Jedi.

Appearances in Star Wars Media
Exar Kun appeared in the Tales of the Jedi comics of the ninties, where he was the main antagonist.

Trivia

 * He was one of a handful of Sith Lords who did not use a red-bladed lightsaber.
 * He was the first person to use a double-bladed lightsaber in Star Wars canon.