DoctorsSeries 19Episode 63: Parallel WorldsBBC One Duration: 28 minutesFirst broadcast: Fri 15th Sep 2017, 13:45 on BBC One HDLatest broadcast: Fri 15th Sep 2017, 13:45 on BBC One WalesValerie trusts her instincts and discovers a patient is hiding a disturbing truth. Emma tries to get Zara to break her sugar rule. Show more ContributorsValerie Pitman:Sarah MoyleRose Enston:Jean TrendSophie Enston:Joanna SwanDr Zara Carmichael:Elisabeth Dermot WalshDr Emma Reid:Dido MilesDr Al Haskey:Ian MidlaneAyesha Lee:Laura RollinsKaren Hollins:Jan PearsonRob Hollins:Chris WalkerWriter:Stephen KeyworthExecutive Producer:Mike HobsonProducer:Carol HardingDirector:David BeauchampGenresDramaMedicalDramaSoapsBrandDoctorsSeriesDoctors: Series 19 Source: BBC Online