Lily James

as Mieke de Jong

Jai Courtney

as Capt Stefan Brandt

Eddie Marsan

as Heinrich Himmler

Christopher Plummer

as Kaiser Wilhelm II

Janet McTeer

as Princess Hermine 'Hermo' Reuss of Greiz

Daisy Boulton

as Secretary

Ben Daniels

as Col Sigurd von Ilsemann

Stéphane Auberghen

as Frau Linnenkamp