Cast
Frederick Valk
Dr. Kurtz
Gerard Heinz
Dr. Hartmann (uncredited)
Andreas Malandrinos
Italian Police Chief (uncredited)
Arnold Marlé
President of the Medical Society (uncredited)
Finlay Currie
Capt. Joshua Stuart
Sybille Binder
Anne Marie
George Carney
Harry
Tommy Duggan
Office Clerk
Lilli Palmer
Melanie Kurtz
Barry Morse
Robert
Michael Redgrave
David Charleston
Bryan Herbert
Flanning
A.E. Matthews
Mr. Kirby
Milo Sperber
Mr. Hirohiti (uncredited)
Tony Quinn
Office Clerk
Vi Kaley
Old Woman in Cell (uncredited)
Barbara Mullen
Ellen Kirby
James Mason
Streeter
Victor Rietti
Doctor (uncredited)