Samantha "Sam" LaRusso, also known as the “Bonsai Badass”, is one of the three deuteragonists (alongside Tory Nichols and Eli Moskowitz) of the Netflix series Cobra Kai. She is portrayed by Mary Mouser. Sam initially struggled with the pressure of living up to her father’s legacy and the influence of his past as a Karate champion. Her personal life is complicated by her tumultuous relationship with her friends and her own moral dilemmas.