- Produced By:
- Denis Johnston
- Dobelle:
- Max Adrian
- Blanaid, his daughter:
- Betty Chancellor
- Aunt Columba, his sister:
- Jean Anderson
- Agnes, their cook:
- Ann Clery
- George:
- Harry Hutchinson
- Captain Potts:
- Norman Shelley
- Herr Tausch:
- Frederick Schiller
- Darrell Blake:
- Cyril Cusack
- Willie:
- Gerard Tyrrell
- Commandant Lanigan:
- Eddie Byrne