Counterspy

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 (played by 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.