High Quality Content by WIKIPEDIA articles! Noriyuki "Pat" Morita (June 28, 1932 – November 24, 2005) was an American actor of Japanese descent who was well-known for playing the roles of Matsuo "Arnold" Takahashi on Happy Days and Mr. Miyagi in the The Karate Kid movie series, for which he was nominated for the Academy Award for Best Supporting Actor in 1984.