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,
Paul Smith (American actor, born 1929) Smith was in "Mr. Mephisto", the second episode (broadcast September 18, 1976) of the Saturday morning live action children's series "Monster Squad", playing a character named Officer McMacMac. During the 1970s, another actor named Paul Smith was being cast in substantial film and television roles and, for the first time since the start of his acting career in 1951, Smith had a year or more without any screen credits. After a three year period, he returned to television, billed as A. Paul Smith or A. P. Smith. Between 1979 and 1982, he appeared in seven episodes of TV series, starting