13:45DoctorsSeries 20Episode 3: Practice What You PreachBBC One Duration: 29 minutes Wed 7th Nov 2018, 13:45 on BBC One North East & CumbriaKaren prepares the Mill for a special guest. Al is in a foul mood, while Daniel is forced to bring Izzie into the surgery.ContributorsCordelia Smithfield:Sian ReevesRichard Smithfield:Emilio DoorgasinghAlison Turner:Gem CarmellaKaren Hollins:Jan PearsonDr Jimmi Clay:Adrian Lewis MorganDr Daniel Granger:Matthew ChambersDr Zara Carmichael:Elisabeth Dermot WalshDr Emma Reid:Dido MilesDr Al Haskey:Ian MidlaneAyesha Lee:Laura RollinsValerie Pitman:Sarah MoyleIzzie Torres:Bethan MooreJoe Granger Carmichael:Oliver FalconerWriter:Ben EllisDirector:Isher SahotaProducer:Caroline SlaterExecutive Producer:Mike HobsonGenresDramaMedicalDramaSoapsBrandDoctorsSeriesDoctors: Series 20 Source: BBC Online