Jonathan Avildsen (born July 11, 1969) was an American actor with a lengthy criminal record, who has played a handful of minor roles, emphasis on minor, mostly in feature films, with a few appearances in television

Jonathan's most notable parts were in The Karate Kid, Part III playing Cobra Kai villain Snake and then in Rocky V as a drug addict. His father, John G. Avildsen directed both films. Avildsen's role as Snake – the cackling sidekick to "Karate's Bad Boy" Mike Barnes – in The Karate Kid, Part III marked the pinnacle of his career. Despite his father's connections, Jonathan's career has never taken off, resulting in Jonathan being unemployed most of the time. In recent years, Jonathan has become so irrelevant that his wikipedia page had been removed entirely, leading some to speculate that his career was solely based on his father's hand outs. Jonathan has booked no gigs since 2017 after his father died.