Yale Karlsen was a male captain of the Imperial Navy who commanded the Imperial-class Star Destroyer Ultimatum during the reign of the Galactic Empire. In 11 BBY, Karlsen was detached from his vessel to be sent on other business while command was temporarily given to Rae Sloane, a more junior captain who had no vessel of her own to command due to the Navy having more captains than Star Destroyers. While Sloane was in command of the ship, it was assigned to take the industrialist Count Denetrius Vidian to the planet Gorse, a mission which escalated into a conflict with a group of local rebels. During the conflict, Vidian offered to use his connections to make Sloane's posting permanent, claiming Karlsen could be commander of a different Star Destroyer instead. The Count later told Sloane t