Guest Stars Kingsley Ben-Adir as Dr. Marcus Summer Christine Kavanagh as Karen Kenworthy Teresa Banham as Lorna Underwood John Woodvine as Alan Kenworthy Phil Corbitt as Taxi Driver Victoria Inez Hardy as Amy Dave Hill as Larry Crowe Michael Hodgson as Thomas Kenworthy Phoebe Thomas as Nicky Christopher Villiers as Noel Underwood Wendy Patterson as Valerie Rob Jarman as David Kenworthy Maxine Finch as Doctor Gordon Kane as Landlord Gary Kitching as Chip Shop Owner Niek Versteeg as Paul Annmarie Hosell as Receptionist Maxie Peters as Security Officer
