Nyax jal Sk'ar was a Kaleesh general in the Imperial Army of the Fel Empire and later the new Galactic Empire of Darth Krayt, though eventually defecting to the Empire-in-exile. Originally a warlord on his homeworld of Kalee, Nyax demonstrated his combat and tactical skills by resisting Imperial forces for several months in the Siege of Kalee, when the Fel Empire was trying to conquer the planet. He was ultimately defeated, but admired his opponents and joined the military after being brought before Emperor Roan Fel.