The radio program also found its way onto television. Pictured are Mendell Kramer as Peters (left) and Don McLaughlin as David Harding in 1952.
Counterspy was an espionage drama radio series that aired on the NBC Blue Network (later the ABC) and Mutual from May 18, 1942 to November 29, 1957.
David Harding (Don MacLaughlin) was the chief of the United States Counterspies, a unit engaged during World War II in counterintelligence against Japan's Black Dragon and Germany's Gestapo.
With spies still lurking in the post-war years, as well as the Communist threat, the adventures continued apace well after World War II ended.
Scriptwriters for the series included Milton J. Kramer, Emile C. Tepperman and Stanley Niss.
The radio drama was adapted to film as David Harding, Counterspy (1950) with Howard St. John in the title role.