Guest Stars Geraldine James as Caroline Matteson Richard Durden as Oscar Matteson Adeel Akhtar as Billy Christine Bottomley as Mandy Jamie Michie as Dom Jo Martin as Parole Officer Janice Imogen Gurney as Lara Liam Williams as Nathan Frank Feys as Samuel Souad Faress as Anna Zee Asha as Female Shop Assistant Jennifer Tollady as Mother Rhona Cameron as Receptionist Hussina Raja as Doctor