Suspect

Tony Britton

Dr. Robert Marriott

Virginia Maskell

Dr. Lucy Byrne

Ian Bannen

Alan Andrews

Kenneth Griffith

Dr Shole

Peter Cushing

Professor Sewell

Thorley Walters

Special Agent Prince

Donald Pleasence

Parsons, alias Bill Brown

Spike Milligan

Arthur, lab orderly

Raymond Huntley

Sir George Gatting the Minister of Defense

Sam Kydd

Slater

Anthony Booth

Parkin

Basil Dignam

Dr Childs

Brian Oulton

Director

Robert Bruce

Levers

John Payne

Iverson

Bruce Wightman

Phil the Barman

Geoffrey Bayldon

Rosson

Andre Charisse

Heller

Ian Wilson

Pin Table Man

Margaret Lacey

Prince's Secretary

Murray Melvin

Teddy Boy

Roy Boulting

Réalisation

John Boulting

Réalisation

Basil Rayburn

Assistant réalisation

Roy Boulting

Scénario

Nigel Balchin

Roman, Scénario

John Boulting

Production

Roy Boulting

Production

Philip Shipway

Production Manager

Mutz Greenbaum

Photographie

Laurie Ridley

Still Photographer

Peter Allwork

Cadrage

Gerry Anstiss

Assistant Camera

Jack Roche

Grip

John Jympson

Montage

George Stephenson

Mixage

Albert Witherick

Direction artistique

Peter James

Décoration

Anne Box

Coiffure

Freddie Williamson

Maquillage

Alan Evans

Scenic Artist