Elmo Kragler was an experienced sergeant of the Black Company prior to and during the Books of the North. He was a long-standing, respected member and he sponsored the membership of Croaker. Croaker considered Elmo to be his best friend among all of the Company's members.
Elmo served as second in command of the Black Company after the death of the Captain through the end of their time as soldiers of the White Rose. During the Battle of the Barrowland, Elmo was personally slain alongside the Lieutenant by the Dominator in hand-to-hand combat.