Charles Farrell
— Boy
Esther Ralston
— Girl
Wallace Beery
— Bos'n
George Bancroft
— Gunner
Charles Hill Mailes
— Commodore Preble
Johnnie Walker
— Stephen Decatur
Eddie Fetherston
— Richard Somers
George Godfrey
— Cook
William Conklin
— Esther's Father (uncredited)
Effie Ellsler
— Esther's Mother (uncredited)
Guy Oliver
— First Mate (uncredited)
Fred Kohler
— Second Mate (uncredited)
Arthur Ludwig
— Second Mate (uncredited)
Boris Karloff
— Saracen Guard (uncredited)
Dean Harrell
— Young Decatur (uncredited)
Spec O'Donnell
— Cabin Boy (uncredited)
Nick De Ruiz
— Bashaw (uncredited)
Frank Jonasson
— Pirate Captain (uncredited)
Duke Kahanamoku
— Pirate Captain (uncredited)
Mitchell Lewis
— Pirate Chief (uncredited)
Tetsu Komai
— Pirate (uncredited)
Richard Alexander
— Seaman (uncredited)
Richard Arlen
— Seaman (uncredited)
Frank Bonner
— Seaman (uncredited)
Gary Cooper
— Seaman (uncredited)
Frank Darien
— Seaman (uncredited)
Jack Herrick
— Seaman (uncredited)
Robert Livingston
— Seaman (uncredited)
William Bakewell
— Young Philadelphian (uncredited)
Bess Flowers
— (uncredited)