Obsada
Anne Heywood
Anna Holt
Siegfried Lowitz
Mr. Walters
Jeremy Spenser
Martin Holt
Dieter Borsche
Dr. Miller
Ann Sears
Stevenson's secretary
Peter van Eyck
Dr. Peter Corrie
Hans Nielsen
Immerman
Jack MacGowran
Furber
George A. Cooper
Thomas Gabler
Bryan Pringle
Dance Hall MC (uncredited)
Cecil Parker
Stevenson
Bernard Lee
Dr. Frank Shears
Ellen Schwiers
Ella
Maxine Audley
Marion Fane
Allan Cuthbertson
Da Silva
Alister Williamson
Inspector Pike
John Junkin
Frederick (uncredited)