See How They Run Top Cast 

Kieran Hodgson

Harley the Motorcycle Messenger

Pearl Chanda

 Sheila Sim

Gregory Cox

 Major Metcalf

Harris Dickinson

 Richard Attenborough

Maggie McCarthy

 Mrs. Boyle

Charlie Cooper

 Dennis Corrigan

Ruth Wilson

 Petula Spencer

Oliver Jackson

 Trumpet

Tomi Ogbaro

 Double Bass

Reece Shearsmith

 John Woolf

Sian Clifford

 Edana Romney

Adrien Brody

 Leo Kopernick

David Oyelowo

 Mervyn Cocker-Norris

Jacob Fortune-Lloyd

 Gio

Ania Marson

 Mother

Saoirse Ronan

 Constable Stalker

Sam Rockwell

 Inspector Stoppard

Tim Key

 Commissioner Harrold Scott