Grolt was a human male who served as a lieutenant in the Imperial Navy five years after the end of the Clone Wars. He was described to be thin like a Whiptree and was an officer aboard the Perilous, flagship of Darth Vader and Emperor Sheev Palpatine during the mission to Ryloth. He died aboard a turbolift in the Perilous when shot in the back of the head by Isval as he escorted her and her "repair team" to the Star Destroyer's engine access station.