

MovieMysteryThrillerDrama
The Third Secret
The Story of a Man Searching for a Killer Who Might Be Himself!
6.2(31)19641h 43m
A prominent London psychologist seems to have taken his own life, causing stunned disbelief amongst his colleagues and patients. His teenage daughter refuses to believe it was suicide as this would go against all of the principles her father stood for, therefore she is convinced it was murder. She enlists the help of a former patient to try to get to the truth. However, the truth turns out to be both surprising and disturbing.
- Director
- Charles Crichton
- Writers
- Robert L. Joseph
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Cast

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)
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Crew
Directing
- Charles CrichtonDirector
- Peter BoltonAssistant Director
- Joan DavisContinuity
Writing
- Robert L. JosephScreenplay
Production
- Shirley BernsteinAssociate Producer
- Davie DavisonUnit Manager
- Josephine KnowlesProduction Secretary
- Robert L. JosephProducer
Camera
- Chic WatersonCamera Operator
- Douglas SlocombeDirector of Photography
Editing
- Frederick WilsonEditor
Sound
- Wally MilnerSound Recordist
- Len ShiltonSound Recordist
- Charles CraffordSound Editor
- Richard ArnellOriginal Music Composer
Art
- Terry KnightDraughtsman
- Thomas N. MorahanProduction Design
Costume & Make-Up
- John McCorryWardrobe Master
- Kenneth MackayMakeup Artist
- Iris TilleyHairstylist