Hamm was a clone trooper specializing in radio communications, notably fighting in the Second Battle of Geonosis.
Being a clone of Jango Fett, Hamm's height was 1.83 meters. He was identifiable by a broken nose in addition to a scar located on his lip.
Originally, Hamm's inclusion was considered for "Landing at Point Rain," which is the fifth episode from the second season of Star Wars: The Clone Wars; however, ultimately, he was removed from the final version of the episode.