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 Olaguibel
— 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