Elenco principal da temporada 12

1. 

   William Zabka

   Johnny Lawrence

2. 

   Ralph Macchio

   Daniel LaRusso

3. 

   Courtney Henggeler

   Amanda LaRusso

4. 

   Xolo Mariduena

   Miguel Diaz

5. 

   Tanner Buchanan

   Robby Keene

6. 

   Mary Mouser

   Samantha LaRusso

7. 

   Peyton List

   Tory Nichols

8. 

   Jacob Bertrand

   Eli 'Hawk' Moskowitz

9. 

   Gianni DeCenzo

   Demetri Alexopoulos

10. 

    Dallas Dupree Young

    Kenny Payne

11. 

    Vanessa Rubio

    Carmen Diaz

12. 

    Martin Kove

    John Kreese

Convidados Especiais 18

1. 

   Thomas Ian Griffith

   Terry Silver

2. 

   Diora Baird

   Shannon Keene

3. 

   Erin Bradley Dangar

   Counselor Blatt

4. 

   Kwajalyn Brown

   Sheila

5. 

   Dan Ahdoot

   Anoush

6. 

   Julia Macchio

   Vanessa

7. 

   Alicia Hannah-Kim

   Kim Da-Eun

8. 

   Carsten Nørgaard

   Gunther

9. 

   C.S. Lee

   Master Kim

10. 

    Daniel Kim

    Yoon

11. Kawui Joa

    Min-Seok

12. Sung Ho Park

    Chung-Hee

13. 

    Bret Ernst

    Louie

14. 

    Gabriel Bonilla

    Remi

15. 

    Jesse Malinowski

    Jace

16. Dillon Danekas

    Team Karate Fighter

17. 

    Oona O'Brien

    Devon Lee

18. 

    Patrick Reidy

    Larusso Employee

Equipa técnica 3