Errol Flynn as Brian Hawke

Maureen O'Hara as Prudence "Spitfire" Stevens

Anthony Quinn as Captain Roc Brasiliano

Alice Kelley as Princess Patma

Mildred Natwick as Molvina MacGregor

Robert Warwick as Captain Kidd

Harry Cording as Gow

John Alderson as Jonathan Harris

Phil Tully as Jones

Lester Matthews as Sir Cloudsley

Tudor Owen as Williams

Maurice Marsac as Captain Moisson

James Craven as Captain Hornsby

James Fairfax as Cruikshank (barber)

John George as Pirate at Auction (uncredited)