Will Denton
Kirk Douglas
Jonathan Kongre
Yul Brynner
Santos (as Tony Skios)
Antonio Rebollo
Calsa Larga (as Luis Bar Boo)
Luis Barboo
Valgolyo
Tony Cyrus
Malapinha
Raúl Castro
Amador
Oscar Davis
Morabbito
Alejandro de Enciso
Balduino (as Martin Uvience)
Martin Uviente
Matt
John Clark
Emily Jane
Maria Borge
Captain Lafayette
Juan Cazalilla
Arabella
Samantha Eggar
Virgilio
Jean-Claude Drouot
Captain Moriz
Fernando Rey
Montefiore
Renato Salvatori
Felipe
Massimo Ranieri
Tarcante (as Aldo Sanbrell)
Aldo Sambrell
Emilio (as Tito Garcia)
Tito García
Das Mortes (as Victor Israel)
Víctor Israel
Producer
Novel
Jules Verne
Second Unit Director of Photography
Cecilio Paniagua
Director
Kevin Billington
Original Music Composer
Piero Piccioni
Director of Photography
Henri Decaë
Costume Design
Manolo Mampaso
Hairstylist
Josefa Rubio
Deirdre Clancy
Art Direction
Enrique Alarcón
Production Manager
Francisco Romero
Casting
John Merrick
Makeup Artist
Ramón de Diego
Special Effects
Antonio Molina
José Antonio Sánchez
Executive Producer
Alfredo Matas
Richard M. Parker
Editor
Bert Bates
Writer
Rachel Billington
Production Supervisor
José Manuel M. Herrero
Second Unit Director
Juan Estelrich March
Sound
A.J. Willis
Assistant Director
Julio Sempere
Continuity
Jane Buck
Enrique Molinero
Camera Operator
Eduardo Noé
Sound Editor
Teddy Mason
Screenplay
Tom Rowe
Additional Dialogue
Associate Producer
Ilya Salkind