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