Bessie Love

Character: Paula White

Lewis Stone

Character: Sir John Roxton

Wallace Beery

Character: Prof. Challenger

Lloyd Hughes

Character: Edward E. Malone

Alma Bennett

Character: Gladys Hungerford

Arthur Hoyt

Character: Prof. Summerlee

Margaret McWade

Character: Mrs. Challenger

Bull Montana

Character: Ape Man

Frank Finch Smiles

Character: Challengers Diener

Jules Cowles

Character: Zambo

George Bunny

Character: Colin McArdle

Charles Wellesley

Character: Maj. Hibbard

Arthur Conan Doyle

Character: Himself

Virginia Brown Faire

Character: Marquette

Nelson McDowell

Character: Lawyer

Gilbert Roland

Character: Extra

Leo White

Character: Percy Potts