Calificación
Reparto

Michael Caine
Maj. John Tarrant

Donald Pleasence
Cedric Harper

Delphine Seyrig
Ceil Burrows

Clive Revill
Alf Chestermann

John Vernon
McKee

Joss Ackland
Chief Supt. Wray

Janet Suzman
Alex Tarrant

Catherine Schell
Lady Melissa Julyan

Joseph O'Conor
Sir Edward Julyan

Denis Quilley
Bateson

Derek Newark
Monitoring Policeman

Edward Hardwicke
Mike McCarthy

Maureen Pryor
Jane Harper

Joyce Carey
Miss Monley

Preston Lockwood
Ilkeston

Molly Urquhart
Margaret