Yours Truly, Johnny Dollar is a radio drama series that centers on the adventures of Johnny Dollar, a freelance insurance investigator. With a format that distinguishes it from other shows, it does not feature a partner, assistant, or secretary for the protagonist. Instead, the character closest to a continuing role is Pat McCracken of the Universal Adjustment Bureau, who assigns Johnny many of his cases. Set in Hartford, Connecticut, Johnny's adventures take him all over the world. Often, characters on the show would mention that they had heard about his cases on the radio, adding a unique touch of credibility to the stories. Through the first three actors to play Johnny Dollar, the series was similar to many other radio detective series, featuring a hard-boiled detective navigating various cases.

The show aired for over 12 years, from 1949 through 1962, in which it saw a one-year hiatus in 1954-1955. Broadcast on CBS Radio and revolving through a total of eight actors playing Johnny Dollar, it had 809 episodes, with more than 710 still existing today. The format for Yours Truly, Johnny Dollar changed over time, with the most memorable being the incorporation of the expense account. The show also attracted some of the best writers in Hollywood, including Jack Johnstone, E. Jack Neuman, Robert Ryf, and Les Crutchfield. The guest stars and supporting casts were top-notch, with notable stars such as Vincent Price making an appearance. Yours Truly, Johnny Dollar was the last continuing detective series of the Golden Age of Radio.

Sources: archive.org, wikipedia.org, otrcat.com