John Dehner plays Marshal Ben Holt, who is suspected of operating outside the law. In 1962, Dehner would play Marshal Ben Wyatt on The Long Gun (1962), who was also considering taking the law into his own hands to capture some killers. In addition to the role on Lawman, Dehner played a character named Ben in four other westerns: Have Gun Will Travel in 1957, Rawhide and Bronco in 1962, and Gunsmoke in 1963.