Jamie Dornan character Pat Quinlan
Guillaume Canet character Rene Faulques
Mark Strong character Conor Cruise O'Brien
Jason O'Mara character Sgt. Jack Prendergast
Michael McElhatton character General McEntee
Mikael Persbrandt character Dag Hammarskjold
Danny Sapani character Moise Tshombe
Fionn O'Shea character William Reidy
Fiona Glascott character Carmel Quinlan
Emmanuelle Seigner character Madame LaFontagne
Conor Quinlan character P.J. (Patrick Joyce)
Sam Keeley character Billy (Sniper) Ready
Conor MacNeill character Radio Operator
Luc Van Gunderbeeck character Charles de Gaulle
Jordan Mifsud character John Donnelly
Charlie Kelly character Walter Hegarty
Mike Noble character Charles Cooley
Ronan Raftery character John Gorman
Gérard Rudolf character Black Jack
Ashish Gangapersad character General Raja
Richard Lukunku character Patrice Lumumba
Andrew Stock character Man in White Suit