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