Characters played by Bessie Love
Paula White
Characters played by Lewis Stone
Sir John Roxton
Characters played by Wallace Beery
Prof. Challenger
Characters played by Lloyd Hughes
Ed Malone
Characters played by Alma Bennett
Gladys Hungerford
Characters played by Arthur Hoyt
Prof. Summerlee
Characters played by Margaret McWade
Mrs. Challenger
Characters played by Bull Montana
Ape-man
Characters played by Frank Finch Smiles
Austin
Characters played by Jules Cowles
Zambo
Characters played by George Bunny
Colin McArdle
Characters played by Charles Wellesley
Maj. Hibbard
Characters played by Jocko the Monkey
Jocko - the Monkey
Characters played by Arthur Conan Doyle
Sir Arthur Conan Doyle