James Arness delivered an outstanding performance in 635 episodes of the legendary Western drama series 'Gunsmoke' as "Marshal Matt Dillon."
The actor, also known for 'How the West Was Won', had a successful trajectory, both on the small and big screens, which lasted more than four decades.
'Gunsmoke': James Arness' Cause Of Death
Unfortunately, Arness died in 2011 at age 88.
This was the cause of his death.