What other roles did Ken Curtis play?

Ken Curtis was best known for his role as Festus Hagen on the television series "Gunsmoke." Beyond this iconic character, he also appeared in various films, including "Riders of the Purple Sage" and "The Searchers." Additionally, Curtis was a talented singer and served as the lead vocalist for the Sons of the Pioneers, a famous Western music group. His diverse career encompassed acting, singing, and even directing in the entertainment industry.