 John MillsTerence Sullivan | Terence Sullivan |
 Dirk BogardeMatt Sullivan | Matt Sullivan |
 Robert BeattyShinto | Shinto |
 Elizabeth SellarsMaureen Fagan | Maureen Fagan |
 Barbara MullenMolly Fagan | Molly Fagan |
 Eddie ByrneFlynn | Flynn |
 Joseph TomeltyDr Brannigan | Dr Brannigan |
| GGilbert HardingHenry Truethome | Henry Truethome |
 James KenneyJohnny Fagan | Johnny Fagan |
 Liam RedmondConnolly | Connolly |
 Jack MacGowranPatsy McGuire | Patsy McGuire |
 Michael GoldenMurphy | Murphy |
 Neil WilsonPolice Constable at Tube Station (uncredited) | Police Constable at Tube Station (uncredited) |
| SStephen DunneBrennan (uncredited) | Brennan (uncredited) |
 Patric DoonanSentry (uncredited) | Sentry (uncredited) |
 John OrchardSentry (uncredited) | Sentry (uncredited) |
 Terence AlexanderShip's Officer (uncredited) | Ship's Officer (uncredited) |
 Harry BroganBarney (uncredited) | Barney (uncredited) |
| HHarry HutchinsonBill - Detective (uncredited) | Bill - Detective (uncredited) |
| DDoris YorkeEnglish Landlady (uncredited) | English Landlady (uncredited) |
| PPatricia StewartGirl at Docks (uncredited) | Girl at Docks (uncredited) |
 Johnnie SchofieldARP Warden (uncredited) | ARP Warden (uncredited) |
 Jean St. ClairRosie O'Flaherty (uncredited) | Rosie O'Flaherty (uncredited) |
| SSeamus KavanaghPublican (uncredited) | Publican (uncredited) |
| JJack RodneyIRA Driver (uncredited) | IRA Driver (uncredited) |
| EEdward ByrneAmbulance Attendant (uncredited) | Ambulance Attendant (uncredited) |
 Tony QuinnAmbulance Attendant (uncredited) | Ambulance Attendant (uncredited) |
| EE.J. KennedyTelephone Exchange Official (uncredited) | Telephone Exchange Official (uncredited) |
| JJohn WarwickPrisoner's Escort on Ship (uncredited) | Prisoner's Escort on Ship (uncredited) |
