Question: when did john hart play the lone ranger?
Answer: from 1952 until 1953

John Hart ( December 13 , 1917 -- September 20 , 2009 ) , also credited as John Hilton was an American film and television actor . In his early career , Hart appeared mostly in Westerns . Although Hart played mostly minor roles in some fairly well known films , he was probably best known for having replaced Clayton Moore in 1952 in the television series , The Lone Ranger for one season from 1952 until 1953 .