Guest Stars Jane Wymark as Joyce Barnaby Barry Jackson as Dr. George Bullard Kirsty Dillon as Gail Stephens Olivia Colman as Bernice Abigail Thaw as Annabel Johnson Caroline Blakiston as Hilary Compton Matilda Sturridge as Christa Palfrey Emma Stansfield as Rebecca Rix Margaret Tyzack as Harriet Compton Sanchia McCormack as Jackie Tanner David Ryall as Bob Moss Ian Targett as Steve Dove Jamie Treacher as Richard Tanner Michelle Butterly as Kate Dove Paul Bentall as Edward Palfrey Jesse Birdsall as Mike Johnson