Guest Stars Leanne Best as Penny Jerome Flynn as Hector Maya Gerber as Lindsay Alex Lawther as Kenny Paul Bazely as The Man in the Woods Natasha Little as Karen Ivanno Jeremiah as Moped Man Camilla Power as Sandra Susannah Doyle as Blackmailed Woman Mariam Haque as Petrol Station Attendant Sarah Beck Mather as Restaurant Mother Nicola Sloane as Bank Clerk Hannah Steele as Melissa Beatrice Robertson-Jones as Restaurant Daughter Frankie Wilson as Tom Jimmy Roye-Dunne as Red