Sôjin Kamiyama, born Mitsugu Kamiyama (Yamagata, January 30, 1884 – Tokyo, July 28, 1954), was a Japanese actor and one of the first to achieve international fame during the silent film era. He began his career in Japan as a member of modern theater companies before moving to the United States in 1919. In Hollywood, he became known for his intense performances, often in roles as an exotic antagonist. His most iconic and globally recognized performance is that of the villainous Mongol Prince in the fantasy film *The Thief of Bagdad* (1924), alongside Douglas Fairbanks. He acted in dozens of American films, including *The Sorrows of Satan* (1926) and *The Woman from Moscow* (1928). With the advent of sound, his American career declined due to his strong accent, prompting him to return to Japan in the early 1930s, where he continued to work as an actor and director. His status as a pioneer and the success he achieved in Hollywood establish him as a fundamental figure in the history of Asian actors in Western cinema.