Dayle Lymoine Robertson (July 14, 1923 – February 27, 2013) was an American actor best known for his starring roles on television. He played the roving investigator Jim Hardie in the NBC/ABC television series Tales of Wells Fargo, and Ben Calhoun, the owner of an incomplete railroad line in ABC's The Iron Horse. He was often presented as a deceptively thoughtful but modest western hero.