Guest Stars Samantha Bond as Vivienne Oborne Geraldine Somerville as DS Michelle Tate Georgina Rylance as Julia Oborne Denise Gough as Christine Faraday Ed Stoppard as Conrad McCaffrey Nicholas Farrell as Sam Oborne John Shrapnel as Sergeant Mike McCaffrey Sam Cox as Greg Sullivan Justin Pierre as DV Andy Vedder Nicholas Brown as Oliver Oborne Jacob Avery as Justin Oborne Alex Argenti as Hotel Manageress