- Unknown:
- Jean Anouilh
- Translated By:
- Lewis Galantlere
- Production By:
- Raymond Raikes
- Gaston, ' the man without memory ':
- Hugh Burden
- La Duchesse Dupont-Dufort patroness of a sameitonium:
- Jeanne de Casalis
- Maltre Huspar, her solicitor:
- Aubrey Richards
- Mme Renaud, believed to be Gaston's mother:
- Gladys Young
- Georges Renaud, her elder son:
- Peter Bathurst
- Valentine Renaud, his wife:
- Olive Gregg
- Servants of the Renaud family: The butler:
- Norman Mitchell
- Servants of the Renaud family: The chauffeur:
- Rupert Davies
- Servants of the Renaud family: The valet:
- Wyndham Milligan
- Servants of the Renaud family: The cook Hester:
- Paton Brown
- Servants of the Renaud family: Juliette:
- Audrey Mendes
- A little boy:
- Jeremy Spenser
- 'Uncle Job':
- Cyril Snaps
