Johnny Weissmüller

Character: Jungle Jim

Trudy Marshall

Character: Barbara Bentley

Suzanne Dalbert

Character: Nyobi

Onslow Stevens

Character: Professor Brandt

Robert H. Purcell

Character: Kramer

Pierce Lyden

Character: Gibbs

Neyle Morrow

Character: Head Ranger

Selmer Jackson

Character: Warden Frank R. Bentley