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