- Author:
- Gregorio Martinez Sierra
- English version by:
- Helen Granville-Barker
- English version by:
- Harley Granville-Barker
- Producer:
- Fred O'Donovan
- Settings:
- Barry Learoyd
- Sister Gracia:
- Barbara Mullen
- Sister Juliana:
- Violet Coleman
- Sister Manuela:
- Dorothy Black
- Maria Isabel:
- Margery Bryce
- Lulu:
- Valerie Carton
- Don Lorenzo:
- Francis Roberts
- Trajano:
- Frank Foster
- Gabriel:
- Harold Scott
- Liborio:
- Edric Connor
- Margarita:
- Patricia Gilder
- Candelas:
- Patricia Laffan
- Quica:
- Helen Misener
- Cecilia:
- Merelina Watts
- The dumb girl:
- Faith Bailey
- Sister Cristina:
- Elizabeth Maude
- Sister Feliciana:
- Simona Pakenham
- Enrique:
- Hugh Falkus
- Sister Dionisia:
- Edna Morris
- Engracia:
- Sandra Jennings
- The Innocent:
- Helen Lacy
- Paquita:
- Anne Fitzgerald
- Lorenza:
- Yvonne Marsh
- Morenito:
- Paul Adrian
- Felipe:
- James Kenney
- Juan de Dios:
- David Crosse
- Vincente:
- John Scott
- Policarpo:
- Thomas Gallagher
- Child:
- Valerie Jene
- Child:
- Tina Pitts
- Child:
- Brian Crown
- Child:
- Valerie Carton
- Child:
- Faith Bailey
