A formerly wealthy man reduced to poverty and alcoholism in Reseda. Estranged from his son Robby, he reopens Cobra Kai to defend and train his neighbor Miguel Diaz, reigniting his old rivalry with Daniel LaRusso.
Former high school bully turned complex martial artist and rival to Daniel.
Briefly appears, possibly a civilian or minor associate.
Skilled karate student and Daniel's primary high school rival.
Skilled but troubled Cobra Kai student and Daniel's initial rival.
Loyal but dim-witted friend of Lou in the 1986 timeline.
Greg is a bodybuilder who leads a group of school bullies and repeatedly creates trouble for Terry and Rick. His jealousy culminates at the senior prom, where he starts a fight with Rick. Rick ultimately defeats him in front of the entire class, ending Greg's dominance in the confrontation.
Calvin's friend who struggles with personal turmoil after discovering his wife's infidelity. His drunk driving leads to a fatal accident that profoundly impacts Calvin and Produce.
European acquaintance interacting with the family.
A competitive diver and jock who antagonizes Jason and tries to impress Valerie. During the championship dive meet, he fakes a cramp out of spite after losing to Jason, prompting the coach to recruit Thornton as a last-minute replacement to save the team's chances.
Deputy sheriff investigating the crash and missing persons, bridges law enforcement and civilians.
Shingo's loyal friend and fellow fighter manipulated into deadly tournaments.
William Zabka has 57 screen credits in a career dating back to 1984. Their work spans 10 cinematic universes — most prominently The Karate Kid with 3 titles. Signature works include Cobra Kai, The Karate Kid, Where Hope Grows. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 10 universes
Related entry on Wikidata (Q966693), public domain (CC0).
