Merrilla, Queen of the Sea
Annette Kellerman
Prince Hero
Hugh Thompson
Princess Leandra
Mildred Keats
King Boreas
Walter Law
Ariela (as Beth Irvine)
Beth Ivins
Prime Minister
Philip Van Loan
Clovis
Fred Drucker
The King
Louis Dean
The Queen
Carey Lee
The Duenna
Minnie Methol
Scenario Writer
John G. Adolfi
Director
Story
George Bronson Howard