The Man In The Door (Aired August 28, 1948) Jeff Regan, Investigator was one of the three detective shows Jack Webb did before Dragnet (see also Pat Novak For Hire and Johnny Modero: Pier 23). It debuted on CBS in July 1948. Webb played JEFF REGAN, a tough private eye working in a Los Angeles investigation firm run by Anthony J. Lyon. Regan introduced himself on each show "I get ten a day and expenses...they call me the Lyon's Eye." The show was fairly well-plotted, Webb's voice was great, and the supporting cast were skillful. Regan handled rough assignments from Lion, with whom he was not always on good terms. He was tough, tenacious, and had a dry sense of humor. The voice of his boss, Anthony Lion, was Wilms Herbert. The show ended in December 1948 but was resurrected in October 1949 with a new cast; Frank Graham played Regan (later Paul Dubrov was the lead) and Frank Nelson portrayed Lion. This version ran on CBS, sometimes as a West Coast regional, until August 1950. Both versions were 30 minutes, but the day and time slot changed several times. A total of 29 episodes from this series are in trading currency. THIS EPISODE: August 28, 1948. CBS network. "The Man In The Door". Sustaining. A murdered architect is seen alive and well! Jeff looks into a complicated story of murder and embezzlement. Jack Webb, Wilms Herbert, Lou Krugman, Lurene Tuttle, Betty Lou Gerson, Dave Henderson, William Conrad, E. Jack Neuman (writer), Sterling Tracy (producer), Bob Stevenson (announcer), Richard Aurandt (music). 29:46. Episode Notes From The Radio Gold Index.