John Wayne as Capt. Ralls

Gail Russell as Angelique Desaix

Gig Young as Samuel 'Sam' Rosen

Adele Mara as Teleia Van Schreeven

Luther Adler as Mayrant Ruysdaal Sidneye

Eduard Franz as Harmenszoon Van Schreeven

Grant Withers as Capt. Wilde Youngeur

Henry Daniell as Jacques Desaix

Paul Fix as Antonio 'Ripper' Arrezo

Dennis Hoey as Capt. Munsey

Jeff Corey as Mr. Loring

Erskine Sanford as Dr. van Arken

Duke Kahanamoku as Ua Nuke

Fred Aldrich as Seaman

Fernando Alvarado as Maru

Jose Alvarado as Taluna

George Barrows as Seaman

Henry Brandon as Kurinua

David Clarke as Mullins

James Dime as Seaman

Fred Fox as Ship's Surgeon

Fred Graham as Sailor in Fright

Fred Graham as Sailor in Fight

Vic Groves as Seaman

Myron Healey as Seaman

Mailoa Kalili as Seaman

Al Kikume as Desaix's Native Servant

Fred Libby as Lookout Sailor

Harold Lishman as Kharma

Rory Mallinson as Officer

Grant Means as Dirk

Frank Mills as Seaman

Forbes Murray as Shipwreck Inquiry Board Member

James Nolan as First Diver

Frank O'Connor as Old Seaman

John Pickard as Second Diver

George Piltz as Native

Norman Rainey as Lawyer

Leo C. Richmond as Native Priest

Chuck Roberson as Seaman

Wallace Scott as Sailor

Mickey Simpson as Second Officer

Ray Spiker as Seaman / Flogger

Carl Thompson as Hekkim - Cabin Boy

Kuka Tuima as Native

Harry J. Vejar as Jarma - Angelique's Servant

Harlan Warde as Seaman Handling Diving Line

John Wengraf as Prosecuting Attorney

Harry Wilson as Seaman

Ward Wood as Young Sailor