Trailer
Cast
Jules Cowles
Zambo
Bessie Love
Paula White
Margaret McWade
Mrs. Challenger
Nelson McDowell
Lawyer
Gilbert Roland
Extra
Leo White
Percy Potts
Lloyd Hughes
Edward E. Malone
Arthur Hoyt
Prof. Summerlee
Lewis Stone
Sir John Roxton
Wallace Beery
Prof. Challenger
Arthur Conan Doyle
Himself
Virginia Brown Faire
Marquette
Alma Bennett
Gladys Hungerford
Bull Montana
Ape Man