The haunting signature theme tune was composed by Wilbur Hatch and featured Dorothy Roberts whistling with an orchestra.
He often commented directly upon the action in the manner of a Greek chorus, taunting the characters, guilty or innocent, from an omniscient perspective.
Bill Forman, a veteran radio announcer, had the title role of the Whistler for the longest period of time.
Other directors included Sterling Tracy and Sherman Marks with final scripts by Joel Malone and Harold Swanton.
Bill Forman, the most frequently employed radio voice of the show's title character, reprised that role on TV.
[9] In the 1990 film The Two Jakes, set in Los Angeles in the late 1940s, the opening narrative of The Whistler can be heard on the car radio as private detective J.J. Gittes (played by Jack Nicholson) cruises the streets.