We earn a commission for products purchased through some links in this article. Cobra Kai star reveals they are "very often covered in bruises" while filming Mary Mouser sustained quite a few injuries on set. 29/12/2020 The Karate Kid franchise, one of the most famous martial arts entertainment properties of all time, and the stars have the bruises to prove it. Mary Mouser, who plays Samantha LaRusso in the streaming show, talked about how the filming was physically demanding, although she admits that a lot of it was down to her own lack of coordination. "I have more than my fair share of mishaps," she told