Britain's two most famous TV policemen on screen together in 1964

Between 1962, when he first appeared as Charlie Barlow in Z-Cars, and 1976, when he played the character for the last time in Second Verdict, Britain's most famous television policeman was Stratford Johns.

That baton was then taken on by John Thaw, who had begun playing Jack Regan in The Sweeney in 1975. He continued in that role until 1978 and then played Inspector Morse between 1987 and 2000. (I don't remember their being any clear holder of the crown during that interregnum.)

And here they are together in a Z-Cars episode from 1964.

Trivia fans will be pleased that Sheila Hancock, who was married to John Thaw, played Miss Hannigan opposite Stratford Johns' Daddy Warbucks in the original London production of Annie.