Armstrong Circle Theatre is an American anthology drama television series which ran from June 6, 1950, to June 25, 1957, on NBC, and from October 2, 1957, to August 28, 1963, on CBS. It alternated weekly with The U.S. Steel Hour. From Wikipedia
The versatile character actor, known for his role as Dr. Peter Guthrie, enjoyed a prolific television career spanning 25 years.