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

Director

John Boulting

Director

Basil Rayburn

Asistente de Dirección

Nigel Balchin

Guión, Guión Adaptado, Novela

Roy Boulting

Guión

Jeffrey Dell

Guión

Mutz Greenbaum

Director de Fotografía

Peter Allwork

Camera Operator

Laurie Ridley

Still Photographer

Gerry Anstiss

Assistant Camera

John Wilkes

Compositor de la Música Original

George Stephenson

Sound Mixer

John Boulting

Productor

Roy Boulting

Productor

Charter Film Productions

Compañía de Produccion

British Lion Film Corporation

Compañía de Produccion

Philip Shipway

Production Manager

Anne Box

Estilista

Freddie Williamson

Maquilladora

John Jympson

Editor

Albert Witherick

Dirección Artística

Peter James

Decorados

Alan Evans

Scenic Artist