Cobra Kai introduced new villains in the final season of the show, including Zara Malik (Rayna Vallandingham), the self-professed Queen of Karate. The series, which began as a sequel series to the Karate Kid movies, has done a great job at building on the world created by the movies as well as bringing in new characters and bringing the Karate Kid teachings to a new generation. The series sees Daniel Russo (Ralph Macchio) and Johnny Lawrence (William Zabka) reunited decades after their Karate Kid rivalry, and initially, that rivalry is still there.