Keisuke Miyagi (宮城健介, Miyagi Keisuke?) also known as Mr. Miyagi, or referred to as "宮城成義" in kanji in The Karate Kid, Part II, is a fictional karate master, played by the late Japanese-American actor Pat Morita, who mentors the characters Daniel LaRusso and Julie Pierce in the Karate Kid films. Morita earned an Academy Award nomination for his performance in the first film.
Robert Mark Kamen stated that Mr. Miyagi was named after Chōjun Miyagi, the founder of Goju Ryu Karate-Do.
Read more about Keisuke Miyagi: Fictional Biography, Karate Style, 2010 Remake