Flora Hawks is in love with the overseer of Tarzan's African estate. After a search for a legendary city of diamonds, Tarzon races with his pet lion Jad-bal-ja to save Haws from being sacrificed to a lion-god.
| Actor | Role |
|---|---|
 James PierceTarzan | Tarzan |
 Frederick PetersEsteban Miranda | Esteban Miranda |
 Edna MurphyBetty Greystoke | Betty Greystoke |
 Harold GoodwinJack Bradley | Jack Bradley |
 Dorothy DunbarLady Greystoke | Lady Greystoke |
 D'Arcy CorriganWeesimbo | Weesimbo |
 Boris KarloffOwaza | Owaza |
 Robert BolderJohn Peebles | John Peebles |