Nick Carter, Master Detective was a Mutual radio crime drama based on tales of the fictional private detective Nick Carter from Street & Smith’s dime novels and pulp magazines. Nick Carter first came to radio as The Return of Nick Carter, a reference to the character’s pulp origins, but the title was soon changed to Nick Carter, Master Detective. A veteran radio dramatist, Ferrin Fraser, wrote many of the scripts.
With Lon Clark in the title role, the series commenced 11 April 1943, on Mutual, continuing in many different timeslots for well over a decade. Between October 1944 and April 1945, it was heard as a 30-minute program on Sunday afternoons at 3pm, sponsored by Acme Paints and Lin-X, with a 15-minute serial airing four or five times a week in 1944 from April to September. In April 1945, the Sunday series moved to 6pm, continuing in that timeslot until June 1946, and it was also heard in 1946 on Tuesday from March to August.