Sean Connery
Sean Connery might have been best known for his role as James Bond, but he was accomplished in martial arts as well. He studied Kyokushin karate and even earned a black belt in the practice. When he was filming Never Say Never Again, Connery battled against martial arts master Steven Seagal, leaving him with a shattered wrist.
Ashton Kutcher
You might not know this, but Ashton Kutcher has been training in Brazilian jiujitsu for years, even earning a purple belt back in 2014. His mentor is. the legendary Rigan Mchado, who himself was trained by martial arts pioneers, the Gracies.