Reginald Owen
Professor Elliott
Barry Fitzgerald
Dennis O'Doul
Philip Dorn
Vandermeer
Maureen O'Sullivan
Jane
Tom Conway
Medford
Johnny Weissmüller
Tarzan
Johnny Sheffield
Boy
Cordell Hickman
Tumbo
Cast of Tarzan's Secret Treasure
Reginald Owen
Professor Elliott
Barry Fitzgerald
Dennis O'Doul
Philip Dorn
Vandermeer
Maureen O'Sullivan
Jane
Tom Conway
Medford
Johnny Weissmüller
Tarzan
Johnny Sheffield
Boy
Cordell Hickman
Tumbo