Mara Maru

Errol Flynn Gregory Mason

Ruth Roman Stella Callahan

Raymond Burr Brock Benedict

Paul Picerni Steven Ranier

Richard Webb Andy Callahan

Dan Seymour Lieutenant Zuenon

Georges Renavent Ortega

Robert Cabal Manuelo

Henry Marco Perol

Ben Chavez Policeman #1 (uncredited)

Howard Chuman Fortuno, Benedict's Bodyguard (uncredited)

Don C. Harvey Larry (uncredited)

Al Kikume Native Man in Island Bar (uncredited)

Ted Lawrence Motor Cop #2 (uncredited)

Leon Lontoc Policeman #2 (uncredited)

Paul McGuire First Mate (uncredited)

Nestor Paiva Captain Van Hoten (uncredited)

Milicent Patrick Minor Role (uncredited)

Otto Reichow Rainer's Henchman (uncredited)

Max Reid Policeman (uncredited)