During the first two years of the show J. Donald Wilson was the writer and producer. During 1944 producer and director George Allen took over. Other directors included Sterling Tracy and Sherman Marks with final scripts by Joel Malone and Harold Swanton. 692 total episodes were produced. Over 200 of those episodes can not be found and are no longer in existence. 

I am the Whistler, and I know many things, for I walk by night. I know many strange tales, many secrets hidden in the hearts of men and women who have stepped into the shadows. I know the nameless terrors of which they dare not speak.

The stories followed an effective formula in which a person's criminal acts were typically undone by their own stupidity. Ironic twist endings were common, as they had been on the show that most obviously influenced it[citation needed], The Shadow. The Whistler narrated, often commenting directly upon the action in the manner of a Greek chorus, taunting the criminal from an omniscient perspective. The Whistler seldom featured any major Hollywood stars, but the quality of writing and performance made it a radio mainstay.