Harkness revealed a deep patriotism for his home country of Australia, though his countrymen do not care at all for him, and a tremendous fear of being laughed at. Teammate Deadshot commented he often wished he had killed Harkness, most notably after his drinking led them to miss a plane and to Deadshot losing his uniform and entering a depressive phase because of it. Ironically, when Boomerang pulled strings to have the suit restored to Deadshot, Lawton's psyche had passed into a phase that led him to loathe it. Harkness remained with the Squad until it was disbanded after a successful mission in Diabloverde.