Simon Templar is a Robin Hood-like criminal known as The Saint — plausibly from his initials; but the exact reason for his nickname is not known (although we're told that he was given it at the age of nineteen). Templar has aliases, often using the initials S.T. such as "Sebastian Tombs" or "Sugarman Treacle". Blessed with boyish humor, he makes humorous and off-putting remarks and leaves a "calling card" at his "crimes", a stick figure of a man with a halo. This is used as the logo of the books, the movies, and the 1960s TV series. He is described as "buccaneer in the suits of Savile Row, amused, cool, debonair, with hell-for-leather blue eyes and a saintly smile..."
Many early shows were adaptations of published stories, although Charteris wrote several storylines for the series which were novelised as short stories and novellas. The longest-running radio incarnation was Vincent Price, who played the character in a series between 1947 and 1951 on three networks: CBS, Mutual and NBC.
Like The Whistler, the program had an opening whistle theme with footsteps. Some sources say the whistling theme for The Saint was created by Leslie Charteris while others credit RKO composer Roy Webb. Price left in May 1951, replaced by Tom Conway, who played the role for several more months. His brother, George Sanders, had played Templar on film. The next English-language radio series aired on Springbok Radio in South Africa between 1953 and 1957. These were fresh adaptations of the original stories and starred Tom Meehan. Around 1965–66 the South African version of Lux Radio Theatre produced a single dramatization of The Saint. The English service of South Africa produced another series radio adventures for six months in 1970–1971. The next English-language incarnation was a series of three radio plays on BBC Radio 4 in 1995 starring Paul Rhys.