 David NivenPeter Carter | Peter Carter |
 Kim HunterJune | June |
 Roger LiveseyDoctor Reeves | Doctor Reeves |
 Marius GoringConductor 71 | Conductor 71 |
 Robert CooteBob Trubshawe | Bob Trubshawe |
 Kathleen ByronAn Angel | An Angel |
 Richard AttenboroughAn English Pilot | An English Pilot |
 Bonar ColleanoAn American Pilot | An American Pilot |
 Joan MaudeChief Recorder | Chief Recorder |
 Robert AtkinsThe Vicar | The Vicar |
 Edwin MaxDr. Mc.Ewen | Dr. Mc.Ewen |
| BBetty PotterMrs. Tucker | Mrs. Tucker |
 Abraham SofaerThe Judge | The Judge |
 Raymond MasseyAbraham Farlan | Abraham Farlan |
 Robert ArdenGI Playing Snout (uncredited) | GI Playing Snout (uncredited) |
 Robert BeattyUS Crewman (uncredited) | US Crewman (uncredited) |
| EEric CawthorneGoatherd (uncredited) | Goatherd (uncredited) |
 Tommy DugganPatrick Aloyusius Mahoney (uncredited) | Patrick Aloyusius Mahoney (uncredited) |
 Leslie DwyerARP Warden (uncredited) | ARP Warden (uncredited) |
 John LongdenNarrator (voice) (uncredited) | Narrator (voice) (uncredited) |
 Lois MaxwellActress (uncredited) | Actress (uncredited) |
 Wally PatchCivil Defence Stretcher Bearer (uncredited) | Civil Defence Stretcher Bearer (uncredited) |
 Laurence PayneProsecuting Counsel (uncredited) | Prosecuting Counsel (uncredited) |
 Robert RiettiMan in Stairway (uncredited) | Man in Stairway (uncredited) |
| RRoger SnowdonJames Monahan (uncredited) | James Monahan (uncredited) |
 Emile StemmlerBritish Serviceman (uncredited) | British Serviceman (uncredited) |
| WWendy ThompsonNurse (uncredited) | Nurse (uncredited) |
 Frederick ValkRAF Chaplain (uncredited) | RAF Chaplain (uncredited) |
| JJoan VerneyGirl (uncredited) | Girl (uncredited) |
