Laurence Harvey
Sean McKenna
Sarah Miles
Catherine
Robert Walker Jr.
Dominic
John Ireland
Prison Warden
Ross Martin
Le Caq
Lee Patterson
Nicky
Jack MacGowran
O'Brian
Carlos Casaravilla
Ramades
Fernando Rey
Sanchez
Fernando Sancho
Shaoush
Noel Purcell
Finigan
José Nieto
Inspector
Phil Posner
Prison Official
Rafael Albaicín
Gendarme
James Brown
Gendarme
Murray Melvin
Gendarme
Carlos Chemenal
Gendarme
Enrique Closas
Gendarme
Juan García Delgado
Gendarme
José Manuel Martín
Gendarme
Ricardo Rodríguez
Gendarme
Juan Olaguivel
Gendarme
Manuel Pêra
Gendarme
Francisco Montalvo
Guard
José Riesgo
Guard
Barta Barri
Death House Guard
José Guardiola
Gate Guard
Edward St. John
Special Guard
Jose Trinidad
Police Chauffeur
Eduardo García
Truck Driver
Robert Rietti
Sanchez / Chief Warden
Xan das Bolas
Laurence Harvey
Director
Ben Barzman
Screenplay
Frédéric Grendel
Novel
Laurence Harvey
Additional Dialogue
Alun Falconer
Additional Dialogue
Laurence Harvey
Producer
Gerard Schurmann
Original Music Composer
Carlo Martelli
Original Music Composer
Oswald Morris
Director of Photography
Ralph Kemplen
Editor
Ramiro Gómez
Art Direction
George Frost
Makeup Supervisor
Betty Glasow
Hairdresser
Jesús García Gárgoles
Production Manager
David Middlemas
Production Supervisor
Pedro Vidal
Assistant Director
Janet Davidson
Sound Editor
Brendan Redmond
Sound Mixer
Gordon Davie
Assistant Sound Editor
Manuel Baquero
Special Effects
Arthur Beavis
Special Effects
Brian West
Camera Operator
Moss Mabry
Costume Consultant
Gerard Schurmann
Conductor
Margarita Pardo
Continuity
Alan Kaplan
Producer's Assistant
John Quested
Assistant Director