The F.B.I. is an American police television series created by Quinn Martin and Philip Saltzman for ABC and co-produced with Warner Bros. Television, with sponsorship from the Ford Motor Company, Alcoa and American Tobacco Company in the first season. Ford sponsored the show alone for subsequent seasons. The series was broadcast on ABC from 1965 until its end in 1974. Starring Efrem Zimbalist, Jr., Philip Abbott and William Reynolds, the series, consisting of nine seasons and 241 episodes, chronicles a group of FBI agents trying to defend the US Government from unidentified threats. Produced by Quinn Martin and based in part on concepts from the 1959 Warner Bros. theatrical film, The FBI Story, the series was based on actual FBI cases, with fictitious main characters carrying the stories. Efrem Zimbalist, Jr. played Inspector Lewis Erskine, a widower whose wife had been killed in an ambush meant for him. Philip Abbott played Arthur Ward, assistant director to FBI Director J. Edgar Hoover. Although Hoover served as series consultant until his death in 1972, he was never seen in the series.
Stephen Brooks played Inspector Erskine's assistant, Special Agent Jim Rhodes, for the first two seasons. Lynn Loring played Inspector Erskine's daughter and Rhodes' love interest, Barbara, in the twelve episodes of the show's first season. Although the couple was soon engaged on the show, that romantic angle was soon dropped. In 1967, Brooks was replaced by William Reynolds, who played Special Agent Tom Colby until 1973. The series would enjoy its highest ratings during this time, peaking at No. 10 in the 1970–1971 season. For the final season, Shelly Novack played Special Agent Chris Daniels.