Dixon of Dock Green, which at that point had been running for seven years but which some considered 'cosy'. The one character present throughout the entire run (though not in every episode) was Bert Lynch, played by James Ellis (though John Phillips as Det. Chief Supt. Robins reappeared sporadically during the show's run – by the end of the series he had become Chief Constable). Other characters in the early days were Stratford Johns (Inspector Barlow), Frank Windsor (Det. Sgt. Watt), Robert Keegan (Sgt. Blackitt), Joseph Brady (PC "Jock" Weir), Brian Blessed ("Fancy" Smith) and Jeremy Kemp (Bob Steele). Also in 1960s episodes as David Graham was Colin Welland, later a screenwriter. Other British actors who played regular roles in the early years included Joss Ackland. Although he played no regular role in the series, future Monkee Davy Jones appeared in three episodes, and 1963 saw two well known faces join the regulars - Leonard Rossiter played DI Bamber in eight episodes and John Thaw, later known for his roles in The Sweeney and Inspector Morse, appeared in four as a detective constable who had to leave the force because he had a "glass head" – he couldn't drink alcohol when socialising and mixing with the criminal fraternity, very much part of a detective's job. Episodes Z-Cars ran for 801 episodes. The original run ended in 1965; Barlow, Watt and Blackitt were spun off into a new series Softly, Softly. When the BBC was looking for a twice-weekly show to replace a series of failed 'soaps' (one example being United!), Z Cars was revived. The revival was produced by the BBC's serials department in a twice-weekly soap opera format of 25-minute episodes, and only James Ellis and Joseph Brady remained from the original show's run. It was shown from March 1967, both 25-minute segments each week comprising one story. It ran like this until the episode "Kid's Stuff" (broadcast on 30 March 1971), shown as a single 50-minute episode for the week, proved the longer format would still work. Thereafter, Z Cars was shown in alternating spells of either two × 25 minute episodes or the single 50-minute episode each week over the next 16 months. This arrangement ended with the showing of the final two-parter, "Breakage" (Series 6, parts 74 and 75, on 21 and 22 August 1972 respectively), after which the series returned permanently to a regular pattern