Guest Stars Kingsley Ben-Adir as Dr. Marcus Summer Dave Hill as Larry Crowe Michael Hodgson as Thomas Kenworthy Christine Kavanagh as Karen Kenworthy Phoebe Thomas as Nicky Christopher Villiers as Noel Underwood Rob Jarman as David Kenworthy Maxine Finch as Doctor Niek Versteeg as Paul Wendy Patterson as Valerie John Woodvine as Alan Kenworthy Teresa Banham as Lorna 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
