The Saint was a radio adventure program in the United States that featured a character ("a swashbuckling, devil-may-care Robin Hood type who, in his attempt to help people, remained just one step ahead of the police and crooks—both of whom he combatted") created by author Leslie Charteris. As the program's introduction said, The Saint (the alias of Simon Templar),
The Black Museum was based on real-life cases from the files of Scotland Yard's Black Museum. The program was transcribed in 1951 and was broadcast in the United States January 1-December 31, 1952, on Mutual. More than 500 of the network's stations carried it. Ira Marion was the scriptwriter, and music for the series was composed and conducted by Sidney Torch.
Dick Powell starred in the Richard Diamond, Private Detective radio series as a light-hearted detective who often ended the episodes singing to his girlfriend, Helen Asher (Virginia Gregg).
In the late 1940s, CBS chairman William S. Paley, a fan of the Philip Marlowe radio serial, asked his programming chief, Hubell Robinson, to develop a hardboiled Western series, a show about a "Philip Marlowe of the Old West". Macdonnell and Meston wanted to create a radio Western for adults, in contrast to the prevailing juvenile fare such as The Lone Ranger and The Cisco Kid. Gunsmoke was set in Dodge City, Kansas, during the thriving cattle days of the 1870s. Dunning, "The show drew critical acclaim for unprecedented realism."
The first several seasons imagined protagonist Johnny Dollar as a standard private investigator drama. In 1955 after a yearlong hiatus, the series came back in its best-known incarnation with Bob Bailey starring in "the transcribed adventures of the man with the action-packed expense account — America's fabulous freelance insurance investigator." There were 809 episodes (plus two not-for-broadcast auditions) in the 12-year run, and more than 720 still exist today. (Jim Cox's book American Radio Networks: A History cites "886 total performances.")