Nariyoshi Keisuke Miyagi, better known as Mr. Miyagi, is a fictional character of Robert Mark Kamen's The Karate Kid franchise, appearing in The Karate Kid, The Karate Kid Part II, The Karate Kid Part III, and The Next Karate Kid. From Wikipedia
Swank’s choice to skip a brief season-six cameo has prompted the team to craft spin-off projects that could bring Julie Pierce back into the Miyagi-verse