Actor Martin Kove has apologised for biting his 'Cobra Kai' co-star Alicia Hannah-Kim's arm during a fan convention. "I deeply regret and apologise for my actions regarding the incident with Alicia...I have always respected her," the 78-year-old said. Kove added, "I was being playful in the moment, but went too far, and there is absolutely no excuse for my behaviour."