Jacob Bertrand who is perhaps best known as Hawk/Eli in the Cobra Kai series is a great guy in real life. I know because I met him. He was really nice and really down to earth. He also has some real life experience in Karate and Taekwondo that he had before he took on his role in Cobra Kai although after taking on the role he has of course increased his training. As I said, he's a really terrific fellow.