Men steal for it. Nations go to war for it. The it is oil - and it grows on trees. Coconut oil is the precious lifeblood of 1870s South Seas traders. And lots of real blood will be spilled to get it! Screen royalty Burt Lancaster is His Majesty O'Keefe in this last of three adventures that (along with The Flame and the Arrow and The Crimson Pirate) blew a revitalizing wind into the sails of the swashbuckler genre. Action, cunning and derring-do are watchwords of the title seafarer as he befriends, defends and ultimately rules the islanders of exotic Yap. Lensed on gorgeus Fiji locations, grandly scored by Robert Farnon and rousingly directed by Byron Haskin, His Majesty O'Keefe delivers heroics of regal proportions.
| Actor | Role |
|---|---|
 Burt LancasterCapt. David Dion O'Keefe | Capt. David Dion O'Keefe |
 Joan RiceDalabo aki Dali | Dalabo aki Dali |
 André MorellAlfred Tetins | Alfred Tetins |
 Abraham SofaerFatumak, Medicine Man | Fatumak, Medicine Man |
 Archie SavageBoogulroo | Boogulroo |
 Benson FongMr. Chou | Mr. Chou |
 Tessa PrendergastKakofel | Kakofel |
| LLloyd BerrellInifel | Inifel |
 Charles HorvathCapt. Bully Hayes | Capt. Bully Hayes |
 Philip AhnSien Tang, Dentist | Sien Tang, Dentist |
 Guy DolemanHerb Weber | Herb Weber |
 Grant TaylorLt. Brenner | Lt. Brenner |
| AAlexander ArchdaleBob Harris | Bob Harris |
| HHarvey AdamsHerr Friedlander | Herr Friedlander |
 Jimmy DimeSailor at Table in Saloon (uncredited) | Sailor at Table in Saloon (uncredited) |
 Sol GorssTough Sailor in Fight (uncredited) | Tough Sailor in Fight (uncredited) |
 Paul PicerniSpanish Ship Owner (uncredited) | Spanish Ship Owner (uncredited) |
| JJack StoneyTough Sailor in Fight (uncredited) | Tough Sailor in Fight (uncredited) |