Sam Rockwell
Inspector Stoppard
Saoirse Ronan
Constable Stalker
Adrien Brody
Leo Köpernick
Ruth Wilson
Petula Spencer
Reece Shearsmith
John Woolf
Harris Dickinson
Richard Attenborough
Charlie Cooper
Dennis Corrigan
David Oyelowo
Mervyn Cocker-Norris
Kieran Hodgson
Harley the Motorcycle Messenger
Pearl Chanda
Sheila Sim
Gregory Cox
Major Metcalf
Maggie McCarthy
Mrs. Boyle
Oliver Jackson
Trumpet
Tomi Ogbaro
Double Bass
Sian Clifford
Edana Romney
Ania Marson
Mother
Tim Key
Commissioner Harrold Scott
Philip Desmeules
Pierre
Laura Morgan
Joyce
Pippa Bennett-Warner
Ann Saville
Angus Wright
Sgt Bakewell
Shirley Henderson
Agatha Christie
Paul Chahidi
Fellowes
Lucian Msamati
Max Mallowan
Tolu Ogunmefun
Mr. Lyon