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