Guest Stars Julia Hills as Caroline Joyner Irma Inniss as Ruth Abbott Imogen Poots as Alice Thornton Adam Thomas as Jamie Ridderford Hywel Simons as George Burrows Roger Evans as PC John Wright Jon Laurimore as Norman Thirlwell Clare Isaac as Stephanie Thornton Diana Coupland as Lily Thirlwell Julie MaCauley as Karen Leon Davies as Mark Wiseman Zak Davies as Alex Burrows