Here's a list of the main cast members:
* Anthony Quinn as Henry "El Casco Blanco" Morgan
* Brigitte Bardot as Linda
* Elsa Martinelli as Maria
* George Sanders as The Commodore
* Peter van Eyck as The Man With The Scar
* Charles Bronson as Chico
It's worth noting that this was one of Bronson's early roles and that the film was shot in Spain, making it a rare opportunity to see a very young Bronson in an action-adventure setting.