Sharon Maguire Director, Screenwriter Michelle Williams Young Mother Actor Ewan McGregor Jasper Black Actor Matthew Macfadyen Terrance Actor Sidney Johnston The Boy Actor Jonathan Andrews Police Officer at Station Actor Sasha Behar The Bomber's Wife Actor Gavin Brocker Detective Tony Jackson Actor Nicholas Courtney Archbishop of Canterbury Actor Chris Cleave Writer Philip Erdoes Executive Producer Simon Fawcett Executive Producer Daria Jovicic Executive Producer Tessa Ross Executive Producer Barrington Pheloung Original Music Shigeru Umebayashi Original Music Ben Davis Cinematographer Valerio Bonelli Film Editing Priscilla John Casting Orla Maxwell Casting