This series is referenced in "Endeavour (2012)" season one, episode one, "Girl", when Detective Sergeant Jakes says to Detective Constable Morse: "It's not Gideon's Way but..."
Alex Davion, who appeared in the series as Gideon's sidekick, became something of a camp figure after appearing as 'Ted Casablanca' in the 1967 film Valley Of The Dolls.
Although given top billing, John Gregson sometimes had less screen time than the supporting cast.
Amongst the guest stars were the following: John Hurt, Derren Nesbitt, Mike Pratt, Jane Merrow, Ann Bell, Michael Robbins, Anton Rogers.
John Creasey created the character of Commander George Gideon in a series of novels, beginning with Gideon's Day (1955), which was filmed as "Gideon of Scotland Yard (1958)."