Johnny Weissmüller
— Jungle Jim
Virginia Grey
— Dr. Hilary Parker
George Reeves
— Bruce Edwards
Lita Baron
— Zia
Rick Vallin
— Kolu - Chief of the Masai
Holmes Herbert
— Commissioner Geoffrey Marsden
Tex Mooney
— Chief Devil Doctor
Jimmy the Crow
— Caw-Caw the Crow
Eumenio Blanco
— Devil Doctor
Steve Calvert
— Gorilla
Chuck Hamilton
— Devil Doctor
Al Kikume
— Native Bearer
Neyle Morrow
— Native Killed by Leopard
Charles Soldani
— Native
Skipper
— Skipper - the Dog