The first film adaptation of Sir Arthur Conan Doyle's classic novel about a land where prehistoric creatures still roam.
Bessie Love
as Paula White
Lewis Stone
as Sir John Roxton
Wallace Beery
as Prof. Challenger
Lloyd Hughes
as Edward E. Malone
Alma Bennett
as Gladys Hungerford
Arthur Hoyt
as Prof. Summerlee
Margaret McWade
as Mrs. Challenger
Bull Montana
as Ape Man
Frank Finch Smiles
as Challengers Diener
Jules Cowles
as Zambo
George Bunny
as Colin McArdle
Charles Wellesley
as Maj. Hibbard
