Z-Cars further spin-off entitled "Second Verdict" in which Barlow and Watt looked into unsolved cases and unsafe convictions. Frank Windsor made a final appearance as Watt in the last episode of "Z-Cars", "Pressure", in September 1978, with Robins (John Phillips), the Detective Chief Superintendent from the original series who had risen to chief constable. Jeremy Kemp, Brian Blessed, Joseph Brady and Colin Welland also appeared, though not as their original characters. "Z-Cars" is incomplete in the archives. The period 1962–65 is reasonably well represented; though with big gaps. With the 1967–71 sixth series, when the programme was shown almost every week,
Z-Cars Z-Cars Z-Cars or Z Cars is a British television drama series centred on the work of mobile uniformed police in the fictional town of Newtown, based on Kirkby, Lancashire (now Merseyside). Produced by the BBC, it debuted in January 1962 and ran until September 1978. The series differed sharply from earlier police procedurals. With its less-usual Northern setting, it injected a new element of harsh realism into the image of the police, which some found unwelcome. "Z-Cars" ran for 801 episodes, of which fewer than half have survived. Regular stars included: Stratford Johns (Detective Inspector Barlow), Frank Windsor (Det. Sgt