When Rockford goes to the US Postal distribution center he is connected to a character with the title of "Nixie". A nixie clerk is someone who deciphers letters and packages that have inscrutable addresses. The word "nixie" is an Americanization of the German word "nicht", meaning "nothing".
Final appearances of Angel Martin, Dennis Becker, and Lt. Chapman until the '90s reunion movies.
Last time that Rockford smokes a cigarette.
Final appearance of Noah Beery Jr. as Rocky.
Rockford's newsman friend Eddie Hellinger has the same surname as legendary reporter and columnist, Mark Hellinger. The real Helllinger was also a movie producer, with a production company at Universal. He wrote and produced several classics, including "The Naked City", which he also narrated.