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 Harry O. Hoyt Director Arthur Edeson Director