William Zabka Johnny Lawrence Actor Ralph Macchio Daniel LaRusso Actor Courtney Henggeler Amanda LaRusso Actor Tanner Buchanan Robby Keene Actor Xolo Maridueña Miguel Actor Mary Mouser Samantha LaRusso Actor Diora Baird Shannon Keene Guest Star Hannah Kepple Moon Guest Star Jacob Bertrand Eli Guest Star Joe Seo Kyler Guest Star Bret Ernst Louie LaRusso Jr Guest Star Vanessa Rubio Carmen Guest Star Griffin Santopietro Anthony LaRusso Guest Star Nichole Brown Aisha Robinson Guest Star Gianni DeCenzo Demitri Guest Star