Guest Stars Fiona Dolman as Sarah Barnaby Tamzin Malleson as Dr. Kate Wilding Warren Clarke as Samuel Quested Francis Magee as Smudgepot Ian Peck as Wilberforce Andrew Havill as Rev. Conrad Walker Denise Black as Chloe Baker Greg Hicks as Rev. Norman Grigor Eleanor Yates as Alice Quested Patrick Ryecart as Anthony Devereux Stephen Marcus as Silas Trout Niamh Quinn as Prudence Natalie Klamar as Esme Baker Bernard Lloyd as Byron Street Beatrice Comins as Evelyn Grigor Richard Hawley as Will Green Jonathan Jaynes as Jonathan Oak Richard Bradshaw as Peter Slim Uncredited Kelvin Wise as Armed Response Unit Jimmy Ryan-Shedden as Abbas Man