Captain Midnight was a U.S. radio serial broadcast from 1938 to 1949. Created by radio scripters Wilfred G. Moore and Robert M. Burtt. Sponsored by the Skelly Oil Company, it began as a syndicated show in the fall of 1938, airing on a few midwest stations through the spring of 1940 including Chicago station, WGN. In the fall of 1940, Ovaltine took over sponsorship, and the series was then heard nationally on the Mutual Radio Network where it remained until 1942. It moved to the Merchandise Mart and the NBC Blue Network in September 1942. When the U.S. Government broke up the NBC Red and Blue Networks, Ovaltine moved the series back to the Mutual Radio Network beginning September 1945. It remained there until December, 1949.
The title character, Charles James Albright, was a World War I pilot. His Captain Midnight code name was given by a general who sent him on a high-risk mission. When the show began in 1938, Albright was a private aviator who helped people, but his situation changed in 1940. When the show was taken over by Ovaltine, the origin story explained how Albright was recruited to head the Secret Squadron, an aviation-oriented paramilitary organization fighting sabotage and espionage during the period prior to the United States' entry into World War II. The Secret Squadron acted both within and outside the United States.