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Alan Edgar Stratford Johns (22 September 1925 – 29 January 2002), known as Stratford Johns, was a British stage, film and television actor who is best remembered for playing the role as senior CID officer Charlie Barlow, a character he originated in the early years of the long-running BBC police series Z-Cars, and then continued to play in several spin-off series in the 1960s and 1970s. Wikipedia