Keanu Reeves
Keanu Reeves has made no secret of his love for martial arts throughout the years, starring in The Matrix and directing the kung-fu film Man of Tai Chi. But with the 2014 action film John Wick, he pushed things to a whole new level. He not only spent months learning judo, but he also studied jiujitsu, which helped give his character the lethal moves featured in the film.
Katheryn Winnick
Katheryn Winnick is a martial arts gem in the acting profession. Her ass-kicking abilities were well-honed before she entered the industry, as she received her first black belt at the age of 13. Winnick had three martial arts schools up and running by the time she was 21. The Vikings star focuses in taekwondo and karate, and she holds black belts in both disciplines.