Created by Frances and Richard Lockridge, Mr. & Mrs. North were fictional amateur detectives appearing in novels, motion pictures, radio, and television. The Norths were not professional detectives, but simply a well-to-do New York couple who stumbled across a murder or two every week and felt compelled to solve the crimes. When it debuted on radio, it soon generated top ratings with a weekly audience of twenty million fans. Joseph Curtin and Alice Frost originally voiced the radio roles of Jerry and Pam North. Later, Richard Denning and Barbara Britton were cast as the Norths, staying on for its successful transition to television.