Johnny Madero, Pier 23 (sometimes listed as Johnny Modero, Pier 23 or Johnny Madero-Pier 23) was a 30-minute radio detective drama
series which was broadcast on Mutual Thursday at 8 p.m. from April 24, 1947 to September 4, 1947. It was the first nationwide program for star Jack Webb. The
storylines follow the footsteps of fast-talking, wisecracking Johnny Madero (Webb), who runs a boat shop on the San Francisco waterfront, rents boats and usually
drops in for a weekly chat with Father Leahy (Gale Gordon). When investigating a crime, Madero manages to solve the mystery before tough cop Warchek (William Conrad).
The supporting cast sometimes included Betty Lou Gerson, Elaine Burke, Bob Holden, Herb Butterfield, Irvin Lee and Herb Rawlinson.