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
Executive Producer
Alfredo Matas
Costume Design
Deirdre Clancy
Manolo Mampaso
Makeup Artist
Ramón de Diego
Hairstylist
Josefa Rubio
Special Effects
Antonio Molina
José Antonio Sánchez
Casting
John Merrick
Art Direction
Enrique Alarcón
Production Manager
Francisco Romero
Richard M. Parker
Editor
Bert Bates
Writer
Rachel Billington
Camera Operator
Eduardo Noé
Sound Editor
Teddy Mason
Sound
A.J. Willis
Second Unit Director
Juan Estelrich March
Production Supervisor
José Manuel M. Herrero
Enrique Molinero
Assistant Director
Julio Sempere
Continuity
Jane Buck
Additional Dialogue
Screenplay
Tom Rowe
Associate Producer
Ilya Salkind