A feud between newspaper writer named Matt Hardesty and a neighbor, Knute Damlon, almost leads to a fistfight. Hoppy shoots a gunfighter and apparently kills him! Hopalong Cassidy was a radio western series in the United States, featuring the character Hopalong Cassidy portrayed by William Boyd and created by writer Clarence E. Mulford. It was syndicated via electrical transcription, beginning in 1948 and continuing into 1950. Its network broadcasts began on Mutual January 1, 1950, and ended on CBS December 27, 1952.