Elisabeth Bergner
— Sylvina Lawrence / Martina Lawrence
Michael Redgrave
— Alan MacKenzie
Wilfrid Lawson
— Thomas E. Lawrence
Mabel Terry-Lewis
— Aunt Helen
Richard Ainley
— Morgan
Kenneth Buckley
— Garrett
Daniel Mendaille
— Old Pauliac
Pierre Juvenet
— Doctor
Stella Arbenina
— Nurse
Kaye Seeley
— Maturin
Ernest Ferny
— Police Supt. Demangeon
Cot D'Ordan
— Clerk
Dorice Fordred
— Eileen
Annie Esmond
— Cook
Clement McCallin
— Karal Anderson
Oliver Johnston
— Prof. Bardesley
Roy Russell
— British Minister
Homer Regus
— Mayor