Guest Stars James McKenna as Sgt. Don Brady Julia St. John as Dr. Amanda Chase Phyllis Logan as Christine Moorhead Adam James as Gregory Salmond Adrian Dunbar as Gerry Berland Poppy Lee Friar as Sophie Moorhead Niamh Cusack as Sally Berland Simon Shepherd as Tom Viner Branko Tomovic as Marek Lisowski Stevee Davies as Joshua Moorhead Leah Bracknell as Carolyn Viner Chris Overton as Sean Berland Hasan Dixon as Neil Viner George Costigan as Allen Moorhead Fiona Glascott as Jenny Mallinger Jamie Samuel as Brian Shanklin Anton Wright as Paul Timms