Christopher Lee

Dr. Stephen Hayward

Jon Finch

Lomax

Judy Geeson

Helen

Dilys Hamlett

Julia Hayward

Tony Beckley

Sgt. Greene

Jane Merrow

Mary Dawson

Colin Jeavons

Bob Dawson

David Trevena

Johnson

Adrian Cairns

Morgan

Daphne Neville

Nurse Fisher

Hugh Smith-Marriott

Dr. Chapman

Hubert Tucker

Ronalds

David Langford

Gray

Sidney Hayers

Director

Kenneth Jones

Art Direction

John W. Carr

Assistant Editor

Laurie Johnson

Original Music Composer

Barry Peters

Supervising Editor

Philip Levene

Screenstory

David Williams

Editor

Michael Towers

Associate Producer

Ken Bridgeman

Set Decoration

Peter Miller

Producer

Patrick Dromgoole

Executive Producer

F. Sherwin Green

Production Supervisor

Ben Roberts

Writer

Mike Davey

Sound Recordist

Christine Penwarden

Makeup Artist

Ivan Goff

Writer

Bob Edwards

Director of Photography