Director
Harry O. Hoyt
DIRECTOR
Writer
Arthur Conan Doyle
WRITER
Marion Fairfax
Stars (in credits order)
Wallace Beery
Prof. Challenger
Bessie Love
Paula White
Lloyd Hughes
Ed Malone
Lewis Stone
Sir John Roxton
Alma Bennett
Gladys Hungerford
Arthur Hoyt
Prof. Summerlee
Margaret McWade
Mrs. Challenger
Bull Montana
Ape-man
Frank Finch Smiles
Austin
Jules Cowles
Zambo
George Bunny
Colin McArdle
Charles Wellesley
Maj. Hibbard
Jocko the Monkey
Jocko - the Monkey
Sir Arthur Conan Doyle
Mary the Chimpanzee
Mary - the Chimpanzee (uncredited)
Malcolm Denny
Undetermined Secondary Role (uncredited)
Virginia Brown Faire
Marquette - Half-Caste Girl (uncredited)
Holmes Herbert
George Marion
Old Professor (uncredited)
Nelson McDowell
Lawyer Advising the Editor (uncredited)
Jack Murphy
Office Boy (uncredited)
Robert Page
Policeman (uncredited)
Gilbert Roland
Leo White
Percy Potts (uncredited)
