Générique complet
The Third Secret
Stephen Boyd
Alex Stedman
Jack Hawkins
Sir Frederick Belline
Richard Attenborough
Alfred Price-Gorham
Diane Cilento
Anne Tanner
Pamela Franklin
Catherine Whitset
Paul Rogers
Dr Milton Gillen
Alan Webb
Alden Hoving
Rachel Kempson
Mildred Hoving
Peter Sallis
Lawrence Jacks
Patience Collier
Mrs Belton
Freda Jackson
Mrs Bales
Judi Dench
Miss Ada Humphries
Peter Copley
Dr Leo Whitset
Nigel Davenport
Lew Harding
Charles Lloyd Pack
Dermot McHenry
Barbara Hicks
Police Secretary
Ronald Leigh-Hunt
Police Officer
Geoffrey Adams
Floor Manager
James Maxwell
Mark
Gerald Case
Mr Bickles
Sarah Brackett
Nurse
Neal Arden
Mr Morgan
John Adams
Police Sergeant (Uncredited)
Ernest Fennemore
Policeman (Uncredited)
Victor Hagan
Court Usher (Uncredited)
John Tatham
Policemen (Uncredited)
Réalisation
Scénario
Production
Shirley Bernstein
Production associée
Davie Davison
Unit Manager
Josephine Knowles
Production Secretary
Robert L. Joseph
Production
Image
Montage
Son et musique
Charles Crafford
Sound Editor
Len Shilton
Sound Recordist
Wally Milner
Sound Recordist
Richard Arnell
Musique