| 角色 | 饰演者 | 角色介绍 |
| Robert Wilson | 罗伯特·多纳特 | |
| Catherine Wilson | 黛博拉·蔻儿 | |
| Dizzy Clayton | 格莱妮丝·约翰斯 | |
| Elena | 安·托德 | |
| Richard | Roland Culver | |
| Chemist | Ivor Barnard | |
| Minnie | Muriel George | |
| Commander | Allan Jeayes | |
| Mr. Staines | Eliot Makeham | |
| Mrs. Hemmings | Elliott Mason | |
| Mr. Hargrove | Brefni O'Rorke | |
| Charlie | Edward Rigby | |
| Jeannie (uncredited) | Jeanine Carre | |
| Strupey (uncredited) | Leslie Dwyer | |
| ARP warden (uncredited) | Vincent Holkman | |
| Introduction - USA Version (uncredited) | 彼特·劳福德 | |
| Petty officer (uncredited) | Henry B. Longhurst | |
| Soldier (uncredited) | 罗杰·摩尔 | |
| Meg (uncredited) | Mollie Munks | |
| (uncredited) | Bill Owen | |
| Bill (uncredited) | Harry Ross | |
| Webster (uncredited) | Bill Shine | |
| Irene (uncredited) | Rosamund Taylor | |
| Essex (uncredited) | Billy Thatcher | |
| Naval Barber (uncredited) | Jack Vyvian | |
| CPO Scotty McAllister (uncredited) | Caven Watson |
