Overview
- His family said he died on Dec. 18, 2025, in Morro Bay, California, and no cause of death was provided.
- Ewing first appeared on Gunsmoke in February 1965 as Ben Lukens before debuting as Thad Greenwood that October.
- He portrayed Thad in 50 episodes through September 1967, joining during a contract dispute between star James Arness and CBS.
- Producers later phased out Thad, with the deputy role continuing under Buck Taylor’s Newly O’Brien.
- Beyond Gunsmoke, his credits included Ensign Pulver, None But the Brave, Smith!, Play It as It Lays, and TV shows such as Bewitched and Rawhide, before retiring in 1972 to pursue photography and later running for a Morro Bay city council seat in 2003.