Cloak and Dagger was an NBC

NBC

The National Broadcasting Company is an American commercial broadcasting television network and former radio network headquartered in the GE Building in New York City's Rockefeller Center with additional major offices near Los Angeles and in Chicago...

 radio series, a foreign intrigue adventure adapted from the book Cloak and Dagger by Corey Ford

Corey Ford

Corey Ford was an American humorist, author, outdoorsman, and screenwriter. He was also friendly with several members of the Algonquin Round Table and occasionally ate lunch there....

 and Alastair MacBain.

A syndicated transcription package produced by the Louis G. Cowan agency, Cloak and Dagger was broadcast from May 7 to October 22, 1950 with a cast that included Raymond Edward Johnson

Raymond Edward Johnson

Raymond Edward Johnson was an American radio and stage actor best remembered for his work on Inner Sanctum Mysteries....

, Everett Sloane

Everett Sloane

Everett Sloane was an American stage, film and television actor, songwriter, and theatre director.-Early life:...

 and Jackson Beck

Jackson Beck

Jackson Beck was an American actor best known as the announcer on radio's The Adventures of Superman and the voice of Bluto in the Famous era Popeye theatrical shorts.-Career:...

.

Scriptwriter Wyllis Cooper

Wyllis Cooper

Wyllis Oswald Cooper was an American writer and producer.He is best remembered for creating and writing the old time radio programs Lights Out and Quiet, Please -Biography:...

 directed the series with research support provided by Percy Hoskins

Percy Hoskins

Percy Kellick Hoskins was the chief crime reporter for British newspaper the Daily Express in the 1950s. He also provided stories for radio and television crime shows such as Whitehall 1212....

, British journalist, crime reporter and author.