- Play By:
- Norman Ginsbury
- Produced By:
- David H. Godfrey
- Nicolas de la Motte:
- Anthony Jacobs
- Jeanne de la Motte de VaJois:
- Peggy Thonpe -Bates
- Marchioness de Boulainvilliers:
- Catherine Nangle
- Count de Cagliostro:
- Wensley Pithe-Y
- Cardinal de Rohan:
- Howieson Culff
- Countess de Marsan:
- Dorothy Holmes Gore
- Mane Antoinette:
- Catherine Salkeld
- Louis XVI:
- Brian Haines
- R6taux de Villette:
- Richard Hurndall
- Colette:
- Sulwen Morgan
- Father Loth:
- Arnold Diamond
- Baron de Planta:
- Arthur Lawrence
- M BBhmer:
- Anton Diffring
- Rosalie:
- Myntle Rowe
- Police Inspector:
- Eric Anderson
- Abbé Maury:
- Derek Birch
- M Beugnot T St:
- John Barry
- Procurator-General:
- Richard Williams
- Judge:
- Bryan Powley
