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In page Caroline John:

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John was the third of eight children born to theatre director Alexander John, and his wife the actress and singer Vera Winckworth.[1] She was educated at a convent school in Kenilworth. After training at the Central School of Speech and Drama, she worked in theatre, touring with the Royal Shakespeare Company and the National Theatre Company in Juno and the Paycock in a 1966 production directed by Laurence Olivier, King Lear, Rosencrantz and Guildenstern are Dead, The Merchant of Venice and as Hero in Franco Zeffirelli's production of Much Ado About Nothing.