Discover
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
George Bunny
Colin McArdle
Charles Wellesley
Maj. Hibbard
Arthur Conan Doyle
Himself
Virginia Brown Faire
Marquette
Nelson McDowell
Lawyer
Gilbert Roland
Extra
Leo White
Percy Potts
Art
Milton Menasco
Art Direction
Camera
Arthur Edeson
Director of Photography
Directing
Harry O. Hoyt
Director
Art
Milton Menasco
Art Direction
Camera
Arthur Edeson
Director of Photography
Directing
Harry O. Hoyt
Director