Question: are any actors from gunsmoke still alive?
Answer: Are they still alive? Sadly, no. James Arness, who played the towering and taciturn Marshal Matt Dillon for all 20 seasons of "Gunsmoke," died in 2011. ... Indeed, the only surviving regular cast member of "Gunsmoke" is Buck Taylor, who played yet another Dillon sidekick, Newly O'Brien.