贝茜·洛芙

Bessie Love

饰：Miss Paula White (as Miss Bessie Love)

刘易斯·斯通

Lewis Stone

饰：Sir John Roxton (as Mr. Lewis Stone)

华莱士·比里

Wallace Beery

饰：Prof. Challenger (as Mr. Wallace Beery)

劳埃德·休斯

Lloyd Hughes

饰：Edward E. Malone (as Mr. Lloyd Hughes)

阿尔玛·班尼特

Alma Bennett

饰：Gladys Hungerford (as Miss Alma Bennett)

亚瑟·霍伊特

Arthur Hoyt

饰：Prof. Summerlee (as Mr. Arthur Hoyt)

玛格丽特·麦克韦德

Margaret McWade

饰：Mrs. Challenger (as Miss Margaret McWade)

Bull Montana

饰：Ape-Man (as Mr. Bull Montana)

Frank Finch Smiles

Frank Finch Smiles

饰：Austin (Challenger's butler) (as Mr. Frank Smiles)

朱尔斯·考尔斯

Jules Cowles

饰：Zambo (Roxton's servant) (as Mr. Jules Cowles)

George Bunny

饰：Colin McArdle (as Mr. George Bunny)

Charles Wellesley

饰：Maj. Hibbard (as Mr. Charles Wellesley)

Jocko

Jocko

饰：Himself (a monkey)

阿瑟·柯南·道尔

Arthur Conan Doyle

饰：Himself (as Sir Arthur Conan Doyle)

Virginia Brown Faire

Virginia Brown Faire

饰：Marquette (half-caste girl) (uncredited)

Nelson McDowell

饰：Lawyer advising the editor (uncredited)

吉尔伯特·罗兰

Gilbert Roland

饰：Extra (uncredited)

李奥·怀特

Leo White

饰：Percy Potts (uncredited)

Jocko the Monkey

饰：Himself