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