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 Lizzy McInnerny as Norah Boback Juliet Cowan as Tina Keir Charles as Mark Hebe Bartlett as Cerys Sarah Lam as Laura Thea Achillea as Phoebe Meera Syal as Gaia Demmy Ladipo as Rich Stephanie Fayerman as Sue the Alpaca Farmer Andrew Bryant as Policeman