In 1944, Blackie made his radio debut on NBC. This series was an outgrowth of the popular Boston Blackie movies. Chester Morris and Richard Lane brought to the radio the characters of Boston Blackie and Inspector Farraday. The series was originally a summer replacement for The Amos and Andy Show. It was scheduled to run from June 23, 1944 to September 15, 1944 for a total of thirteen episodes. There is some disagreement on how many episodes actually aired. The series turned out to be very popular and on April 15, 1945 it returned to the air in its own time slot on NBC. This time the star was Richard Kollmar who played Blackie for 220 episodes.