Ken Curtis (born Curtis Wain Gates; July 2, 1916 – April 28, 1991) was an American actor and singer best known for his role as Festus Haggen on the Western television series Gunsmoke. Early years Born on July 2, 1916 as the youngest of three boys in Lamar in Prowers County in southeastern Colorado, Curtis lived his first 10 years on a ranch on Muddy Creek in eastern Bent County. In 1926, the family moved to Las Animas, the county seat of Bent County, so that his father, Dan Sullivan Gates, cou...