A nobleman vows to avenge the death of his father by the hands of pirates. To this end, he infiltrates the pirate band; Acting in character, he single-handedly captures a merchant vessel, but things are complicated when he finds that there is a beautiful young woman of royal blood aboard.

Douglas Fairbanks
as The Duke of Arnoldo / The Black Pirate

Billie Dove
as Princess Isobel

Anders Randolf
as Pirate Captain

Donald Crisp
as MacTavish

Tempe Pigott
as Duenna (as Tempe Pigett)

Sam De Grasse
as Pirate Lieutenant

Charles Stevens
as Powder Man

John Wallace
as Peg-Leg Pirate

Fred Becker
as Pirate

Charles Belcher
as Chief Passenger - Nobleman
CinemaSerf
Still at the top his game, Douglas Fairbanks is the eponymous character - but with a bit of an unlikely backstory. He and his father were lucky to survive a pirate attack on their ship, his dad perishes shortly afterwards and our hero decides to avenge himself on these reprobates by infiltrating and...