William Zabka
Johnny Lawrence

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Johnny Lawrence is the secondary antagonist of The Karate Kid and one of the main protagonists in the Netflix series Cobra Kai. Johnny was once the troubled rich kid of the Valley who started a feud with the new kid Daniel LaRusso, which went on for over thirty-years. His vicious training in martial arts by John Kreese made him a formidable opponent, and he was the top student at the Cobra Kai dojo. After losing the 1984 All Valley Karate Tournament, Johnny's life turned upside down and remained that way into his adulthood, and he became the estranged father of Robby Keene. In an attempt to reclaim his life, Johnny reopens Cobra Kai Dojo and becomes a sensei to an entirely new generation of students.