- Unknown:
- Gabriel Marcel
- Unknown:
- Rosalind Heywood
- Production By:
- E. J. King Bull
- Simon Bernauer:
- Anthony Jacobs
- His sons:David Bernauer:
- Patrick Troughton
- Pierre Bernauer:
- David Enders
- Pauline Bernauer,Simon's wife:
- Joan Miller
- Leon Fabius, Pauline's brother:
- Roger Delgado
- Odette Fabius Leon's wife:
- Joan Matheson
- Madame Lilienthal (Aunt Lena):
- Lilly Kann
- Flora Kaltmann, a cousin of the family:
- Catherine Willmer
- Abbé Schweigsam:
- Howieson Culff
- Hans Frosch, a German refugee:
- David Kossoff