Guest Stars Arthur Darvill as Ernest Wantage Michelle Fox as Siobhan Amy Beth Hayes as Diana Wantage Shobu Kapoor as Mrs Biswas Shvorne Marks as Bernadette Nigel Boyle as Dougie Justine Cain as Hilary Barry Aird as Duke Elliott Spilling as James Wantage Elizabeth Bower as Mrs Hawksley Liberty Miller as Rosie Rupert Lazarus as DC Fulton Tim Murphy as Tony Ninia Benjamin as Clementine Francis Adams as Truck Driver Azuri Muir as Mr Morrison