Call the Midwife fans should brace themselves for the end of the series next month - because the final episode will contain a birth, a wedding, and a funeral. And with viewers already aware that Judy Parfitt’ s much-loved character Sister Monica Joan is suffering from kidney failure, everything is pointing towards the 99-year-old nun making her final journey from Nonnatus House in the last episode of series 15. Actress Parfitt, 90, has been in the BBC ’s Sunday night drama since it first