Mare Nostrum

Apollon Uni

The Triton (prologue) (as Uni Apollon)

Álex Nova

Don Esteban Ferragut (prologue) (as Alex Nova)

Kada-Abd-el-Kader

Don Esteban's Son - Ulysses (prologue)

Hughie Mack

Caragol (prologue)

Alice Terry

Freya Talberg

Antonio Moreno

Ulysses Ferragut

Mademoiselle Kithnou

Ferragut's Wife - Dona Cinta (as Mle. Kithnou)

Mickey Brantford

Ferragut's Son - Esteban (as Michael Brantford)

Rosita Ramírez

Ferragut's Niece - Pepita

Frédéric Mariotti

Toni - the Mate (as Fredrick Mariotti)

Madame Pâquerette

Doctor Fedelmann (as Mme. Paquerette)

Fernand Mailly

Count Kaledine

Andrews Engelmann

Submarine Commander (as André von Engelman)

John George

Servant (uncredited)

Willis Goldbeck

Writer

Giuseppe Amato

Assistant Director

John F. Seitz

Director of Photography

Ben Carré

Art Direction

Rex Ingram

Director, Producer

Harry Lachman

Producer

Grant Whytock

Editor

Vicente Blasco Ibáñez

Novel

Joseph Boyle

Producer, Production Manager, Assistant Director

Walter Pallman

Producer

John Birkel

Producer

George Noffka

Executive Producer