This Is Your FBI is a radio crime drama broadcast in the United States on ABC from April 6, 1945, to January 30, 1953, for a total of 409 shows. FBI chief J. Edgar Hoover gave it his endorsement, calling it "the finest dramatic program on the air". Dramatizations of FBI cases were narrated by Frank Lovejoy, Dean Carleton and William Woodson. Lawrence MacArthur wrote the episodes. This Is Your FBI was sponsored during its entire run by the Equitable Life Assurance Society of the United States.