Donald Wolfit
Doctor Callistratus
Vincent Ball
Dr. John Pierre
Barbara Shelley
Madeleine Duval
Victor Maddern
Carl
W
William Devlin
Kurt Urach
Andrew Faulds
Chief Guard Wetzler
John Le Mesurier
Chief Justice
Bryan Coleman
Monsieur Auron
Cameron Hall
Drunken Doctor
George Murcell
First Guard
J
Julian Strange
Second Guard
B
Bruce Wightman
Third Guard
B
Barbara Burke
Housekeeper
Bernard Bresslaw
Tall Sneak Thief
Hal Osmond
Small Sneak Thief
Milton Reid
Executioner
Patricia Phoenix
Woman
J
Jack Carter
Man in Court (uncredited)