Cast
Bessie Love
Paula White
Lewis Stone
Sir John Roxton
Wallace Beery
Prof. Challenger
Lloyd Hughes
Edward E. Malone
Alma Bennett
Gladys Hungerford
Arthur Hoyt
Prof. Summerlee
Margaret McWade
Mrs. Challenger
Bull Montana
Ape Man
Frank Finch Smiles
Challengers Diener
Jules Cowles
Zambo
Crew
Arthur Conan Doyle
Author
Milton Menasco
Art Direction
George McGuire
Editor
Marcel Delgado
Special Effects
Harry O. Hoyt
Director
Arthur Edeson
Director of Photography
Cecil Holland
Makeup Artist
Marion Fairfax
Screenplay
Earl Hudson
Producer
Perc Westmore
Makeup Artist
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