Richard Attenborough

Peter Watson

Bernard Lee

Inspector Thompson

Donald Houston

Dr. Sanderson

Dorothy Alison

Mrs. Barnes

Patricia Jessel

Mrs. Lawrence

Virginia Maskell

Helen Grey

Kenneth Griffith

Pollen

Alfred Burke

Mr. Barnes

Charles Houston

Nicholas

Maureen Connell

Eunice Blair

Amy Dalby

Miss Acres

Walter Hudd

Superintendent

Patrick Jordan

Injured Sergeant

Graham Stewart

Sergeant Morris

Victor Brooks

Sergeant Collins

Don Chaffey