Julian Wadham
Colonel Fielding
David Thewlis
Sargeant Major Bradley
Sinéad Cusack
Grace Rohan
John Standing
Grandfather George
Richard E. Grant
Major Cross
Brían F. O'Byrne
RSM Digby
David Hayman
Clive Rohan
Tamsin Egerton
Ophelia
Pat Shortt
Redmond
Sebastian Rice-Edwards
Young Bill
Simon Paisley Day
MI-5 Man 1
Vanessa Kirby
Dawn Rohan
Caleb Landry Jones
Percy Hapgood
Aimee-Ffion Edwards
Sophie Adams
Callum Turner
Bill Rohan
Alfie Stewart
Private Henderson