Kirk Douglas as Will Denton

Yul Brynner as Jonathan Kongre

Samantha Eggar as Arabella

Jean-Claude Drouot as Virgilio

Fernando Rey as Captain Moriz

Renato Salvatori as Montefiore

Massimo Ranieri as Felipe

Aldo Sambrell as Tarcante (as Aldo Sanbrell)

Tito García as Emilio (as Tito Garcia)

Víctor Israel as Das Mortes (as Victor Israel)

Antonio Rebollo as Santos (as Tony Skios)

Luis Barboo as Calsa Larga (as Luis Bar Boo)

Tony Cyrus as Valgolyo

Raúl Castro as Malapinha

Oscar Davis as Amador

Alejandro de Enciso as Morabbito

Martin Uviente as Balduino (as Martin Uvience)

John Clark as Matt

Maria Borge as Emily Jane

Juan Cazalilla as Captain Lafayette