| Pauline | 宝莲·墨瑞
 | |
| Doctor Richard Fletcher | 塞巴斯蒂安·肖
 | |
| Skipworth | Bart Allison | |
| IA Medical Officer | Reginald Marsh | |
| IA Political Leader | Frank Bennett | |
| IA Woman Commandant | Nicolette Bernard | |
| IA Group Leader Moorfield | Nicholas Moore | |
| IA NCO | Rex Collett | |
| German Officer | Peter Dineley | |
| Honor Hutton | Honor Fearson | |
| Matron | Bertha Russell | |
| IA Political Lecturer | Miles Halliwell | |
| IA Girl (as Carol James) | Carole James | |
| IA Group Leader | Bill Thomas | |
| Nurse Drayton | Stella Kemball | |
| Dr. Walton | Ralph Wilson | |
| Helen Fletcher | Fiona Leland | |
| German Officer | Alfred Ziemen | |
| German Soldier | Karl Heinz Kreiseler | |
| German Sargeant | Fritz Kule | |
| German Soldier | Gustav Mekke | |
| S.S. Officer (uncredited) | Graham Adam | |
| 1-A Girl (uncredited) | Claire Allen | |
| (uncredited) | Christopher Bell | |
| Immediate Action Commandant (uncredited) | Percy Binns | |
| (uncredited) | Bruce Burn | |
| American Officer (uncredited) | Brewster Cross | |
| British Medical Officer (uncredited) | Jeremy Dacon | |
| (uncredited) | Norbert Dingeldein | |
| (uncredited) | Peter Elkins | |
| (uncredited) | Richard Golding | |
