Calificación
Reparto

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

Edward Judd
P.C. Stevens