Darth Kalast was a Sith Lord who lived around 17,568 BBY and led the Holy Sith Empire. That year, he began the Early Sith War by attacking the Galactic Republic after building up forces in the unexplored fringes of the Outer Rim Territories. Noted to be powerful and cunning by the Jedi Order, the Sith managed to remain elusive during the conflict, though was known to occasionally come out and aid his forces in battle. Along with the Republic, he fought the Zelin splinter government, a faction created by a former Republic Navy admiral, Vedij Zelin. Finally, in 17,561 BBY, he was slain by a team of Jedi Masters.