Shin Koyamada (小山田 真, Koyamada Shin) is a Japanese-born American actor, producer, philanthropist, entrepreneur and martial artist. Koyamada is best known for his roles in The Last Samurai and the Disney Channel original movie Wendy Wu: Homecoming Warrior. He has also produced numerous movies, shows, comics and video games through his production company Shinca Entertainment. In addition to his acting work, Koyamada is also known for his philanthropic efforts in youth leadership, humanitarian aid, gender equality, subnational diplomacy and SDGs, through Koyamada International Foundation (KIF). Koyamada is the Tokyo 2020 Summer Olympics Ambassador for Karate. Koyamada holds black belts in Japanese and Korean martial arts, and has also won U.S. national championships in Chinese martial arts. Koyamada immigrated from Japan to the United States in June 2000.