Hurwitz clarified that the Karate Kid animated television show is not canon, but an easter egg from it appears in Season 3 of Cobra Kai.
Additionally, Karate Kid actors Rob Garrison (Tommy), Ron Thomas (Bobby Brown), Tony O'Dell (Jimmy), and William Zabka (Johnny Lawrence) were in the movie.
The following characters from The Karate Kid franchise return for the series: Daniel LaRusso, Johnny Lawrence, Lucille LaRusso, John Kreese, Bobby Brown, Tommy, Jimmy, Ali Mills, Mrs. Mills, Darryl Vidal, Kumiko Tanaka, Chozen Toguchi, Yuna, Terry Silver, Mike Barnes, Jessica Andrews, and Dennis de Guzman.
Actors from The Karate Kid, Rob Garrison (Tommy), Ron Thomas (Bobby Brown), Tony O'Dell (Jimmy), and Randee Heller (Lucille LaRusso) made guest appearances during this season.
Sean Kanan and William Christopher Ford reprised their roles as Mike Barnes and Dennis De Guzman, from The Karate Kid III.
The animated series had different voice actors for the following characters: Joey Dedio as Daniel LaRusso, Robert Ito as Mr. Miyagi, and Janice Kawaye as Taki Tamurai.