 Lily JamesMieke de Jong | Mieke de Jong |
 Jai CourtneyCapt Stefan Brandt | Capt Stefan Brandt |
 Eddie MarsanHeinrich Himmler | Heinrich Himmler |
 Christopher PlummerKaiser Wilhelm II | Kaiser Wilhelm II |
 Janet McTeerPrincess Hermine 'Hermo' Reuss of Greiz | Princess Hermine 'Hermo' Reuss of Greiz |
| DDaisy BoultonSecretary | Secretary |
 Ben DanielsCol Sigurd von Ilsemann | Col Sigurd von Ilsemann |
 Stéphane AuberghenFrau Linnenkamp | Frau Linnenkamp |
| AAubeline BarbieuxBeatrix | Beatrix |
| LLoïs van WijkLittle Girl | Little Girl |
| KKarin LeclercqWidow in Hotel | Widow in Hotel |
 Anton LesserGeneral Falkenberg | General Falkenberg |
 Martin SwabeyMueller | Mueller |
 Martin SavageDirksen | Dirksen |
 Mark DexterDietrich | Dietrich |
| KKurt StandaertSchulz | Schulz |
 Kris CuppensPastor Hendricks | Pastor Hendricks |
| FFrederik LebeerSignal Operative | Signal Operative |
 Stéphanie Van VyveHedwig Potthast | Hedwig Potthast |
 Lucas TavernierSS Colonel Meyer | SS Colonel Meyer |
| TTom De VreeseWehrmacht Soldier - Brandt Unit | Wehrmacht Soldier - Brandt Unit |
| LLuc KrijgsmanWehrmacht Soldier - Brandt Unit | Wehrmacht Soldier - Brandt Unit |
 Verona VerbakelWehrmacht Secretary | Wehrmacht Secretary |
| SSebastiaan HamWehrmacht Soldier - Brandt Unit | Wehrmacht Soldier - Brandt Unit |
| SSjoerd SchaapWehrmacht Soldier - Brandt Unit | Wehrmacht Soldier - Brandt Unit |
| DDaan AufenackerOfficer (uncredited) | Officer (uncredited) |
| TTom MagnusLieutenant Commander (uncredited) | Lieutenant Commander (uncredited) |
| JJan SmekensSS Guard (uncredited) | SS Guard (uncredited) |
