Kephess

Kephess was a Trandoshan Male mercenary leader and warlord on the time of the Cold War. Kephess was the commander of the mercenary unit the Warstalkers, a very famous mercenary unit, and he was hired by the Galactic Republic for stop the Sith Empire (Post–Great Hyperspace War) to conquer the planet of Deneba. Here however at one time he was fatally injured but appeared in front of him the Dread Masters, at this time rogues from the Empire, that imbued Kephess with some portion of their considerable power, managing to fully recover and performed physical feats beyond that of typical Trandoshans. Kephess becomed the Dread Masters' “chosen one,” obsessed with spreading terror and violence in their name. So he conquered Deneba and challenged the Republic and the Sith to defeated him; so both governaments send their kill team and one of their at last killed Kephess.

Appearances

 * ''Star Wars: The Old Republic

Behind the Scenes
Kephess appear in one of the new SWTOR flashpoint accessible to both faction so it's unkown how defeat him.