 | Johnny Weissmüller als Tarzan |
 | Maureen O'Sullivan als Jane Parker |
 | Neil Hamilton als Harry Holt |
 | C. Aubrey Smith als James Parker |
 | Doris Lloyd als Mrs. Cutten |
 | Forrester Harvey als Beamish |
 | Ray Corrigan als Ape (uncredited) |
 | Ivory Williams als Riano |
 | Johnny Eck als Bird Creature (uncredited) |
| Edgar Rice Burroughs | Characters |
| W.S. Van Dyke | Director |
| Cyril Hume | Adaptation |
| Ben Lewis | Editor |
| Irving Thalberg | Executive Producer |
| Paul Neal | Sound |
| Al Cadutta | Stunts |
| J.J. Cohn | Production Manager |
| Harold Rosson | Director of Photography |
| Tom Held | Editor |
| Bernard H. Hyman | Line Producer |
| Stubby Kruger | Stunts |
| Ray Corrigan | Stunts |
| Tony Cadutta | Stunts |
| Norm Taylor | Stunts |
| George Bruggeman | Stunts |
| Douglas Shearer | Sound |
| Cedric Gibbons | Art Direction |
| Alfredo Codona | Stunts |
| Clyde De Vinna | Director of Photography |
| Arthur Rose | Assistant Director |
| Ivor Novello | Dialogue |
