Guest Stars Chris Reilly as Ray Suzanne Packer as Layla Jack Parry-Jones as Luke Nia Roberts as Linda Sara Lloyd as Patricia Gareth Jewell as Carl Kate Jarman as Marie Rhydian Jones as Russel Ceri Murphy as Aled Jake Burgum as Neil Alexandria Riley as Tracy Owain Gwynn as Cai Nathan Sussex as Driver Zak Sutcliffe as Twelve-Year-Old Sam Efa Morris as Ten-Year-Old Gina Caroline Berry as Susan Dion Davies as Supervisor