Marshall, a male human officer, held the rank of Captain in the Galactic Republic military and served within the ranks of the Eighty-first Infantry. He and his unit experienced a period of inactivity while stationed above Voss. Following the intervention of the Commander of Havoc Squad, who persuaded Senator Evran to reassign the 81st, Marshall and his troops expressed immense gratitude. This gratitude was later demonstrated through their assistance to the Major in capturing General Arkos Rakton in the midst of the Battle of Corellia.