Guest Stars Samantha Bond as Lady Rosamund Painswick Jeremy Swift as Spratt Douglas Reith as Richard "Dickie" Grey, Lord Merton Andrew Scarborough as Tim Drewe Howard Ward as Sergeant Willis Daisy Lewis as Sarah Bunting Emma Lowndes as Mrs Drewe Rade Serbedzija as Prince Igor Kuragin Matt Barber as Atticus Aldridge Catherine Steadman as Mabel Lane Fox Richard E. Grant as Simon Bricker Louis Hilyer as Inspector Vyner Christopher Rozycki as Count Nicolai Rostov Alex McNally as Taxi Driver Uncredited Lauren Beacham as Bella Davis Georgina Bennett as Volunteer