"The story of a female German spy who willingly sacrifices her life for her country."
Apollon Uni
as The Triton (prologue) (as Uni Apollon)
Álex Nova
as Don Esteban Ferragut (prologue) (as Alex Nova)
Kada-Abd-el-Kader
as Don Esteban's Son - Ulysses (prologue)
Hughie Mack
as Caragol (prologue)
Alice Terry
as Freya Talberg
Antonio Moreno
as Ulysses Ferragut
Mademoiselle Kithnou
as Ferragut's Wife - Dona Cinta (as Mle. Kithnou)
Mickey Brantford
as Ferragut's Son - Esteban (as Michael Brantford)
Rosita Ramírez
as Ferragut's Niece - Pepita
Frédéric Mariotti
as Toni - the Mate (as Fredrick Mariotti)
Madame Pâquerette
as Doctor Fedelmann (as Mme. Paquerette)
Fernand Mailly
as Count Kaledine
Andrews Engelmann
as Submarine Commander (as André von Engelman)
John George
as Servant (uncredited)
Rex Ingram
Director
Vicente Blasco Ibáñez
Novel
Willis Goldbeck
Writer
John F. Seitz
Director of Photography
Ben Carré
Art Direction
Grant Whytock
Editor
George Noffka
Executive Producer
Walter Pallman
Producer
John Birkel
Joseph Boyle
Harry Lachman
Production Manager
Giuseppe Amato
Assistant Director
