The Boston Blackie radio program was an adaptation of the Boston Blackie stories written by Jack Boyle. Blackie was a reformed criminal who devoted his efforts to catching criminals. The opening of each episode describe him as "enemy to those who make him an enemy — friend to those who have no friend". Characters heard regularly on the show were Blackie, Mary Wesley (his girlfriend), and police inspector Faraday. Media critic John Crosby wrote that Blackie had "no visible means of support" and that "He solves crimes apparently more for the fun of it than for sordid cash."
NBC version... Boston Blackie debuted on radio on June 23, 1944, as a summer replacement for NBC's Amos 'n' Andy. Chester Morris portrayed Blackie, and Richard Lane played Inspector Farraday, as they did in the Blackie films. Mary was portrayed by Lesley Woods. The announcer was Harlow Wilcox, and Milton and Barbara Merlin were the writers. The sponsor was Rinso soap. The show was broadcast on Fridays at 10 p.m., Eastern Time. It ended on September 15, 1944.---WIKIPEDA