| Winston Churchill | 布莱丹·格里森
 | |
| Clemmie Churchill | 珍妮·麦克蒂尔
 | |
| Jock Collville | 詹姆斯·达西
 | |
| Maj-General Bernard Montgomery | 帕特里克·麦拉海德
 | |
| General Ismay | 罗伯特·皮尤
 | |
| Halifax | Donald Sumpter | |
| Officer | 劳伦斯·理查德森
 | |
| Pilot | Ben Righton | |
| Betty | 艾玛·汉密尔顿
 | |
| Victor | James Fiddy | |
| Dissident Backbencher | Patrick Brennan | |
| Maddox | Morgan Thomas | |
| Factory Worker | Catriona Ryan | |
| Intelligence Officer | William Ellis | |
| King George VI | 伊恩·格雷
 | |
| President Franklin D. Roosevelt | 兰·卡琉
 | |
| Clement Attlee | 比尔·帕特森
 | |
| Harry Hopkins | 加里克·哈根
 | |
| Neville Chamberlain | Jack Shepherd | |
| Sawyers | Adrian Scarborough
 | |
| Thompson | Clive Mantle | |
| Captain Pim | Terrence Hardiman | |
| Bomber Harris | 迈克尔·潘宁顿
 | |
| Charles Moran | Michael Elwyn | |
| Josef Stalin | Aleksei Petrenko | |
| General Alan Brooke | Geoffrey Kirkness | |
| Elyot | Mark Lingwood | |
| Sir John Anderson (uncredited) | Paul Kelleher | |
