Guest Stars Nina Toussaint-White as Lucy Damien Molony as Jon Caroline Ginty as Caroline Dustin Demri-Burns as Simon Karl Theobald as Therapist Dylan Edwards as Billy Pauline McLynn as Mum Francis Magee as Dad Alistair Green as Skinny Pig Eliot Salt as Frances Tiff Stevenson as Tania Alfie Brown as Mark Sukh Ojla as Teacher Felicity Ward as Charlotte Ako Mitchell as Tom Tania Edwards as Actress in Advert Max Runham as Director