Dolph Lundgren, Many people know him, they just don't know they know him. But on the other-hand, lot's of people still don't know who he is because he is Underused.
Dolph came to fame after his great role as "Ivan Drago", the Russian Opponent of "Rocky Balboa (Slyvester Stallone)" in the movie "ROCKY IV". He's done many other great films with other big actors such Jean-Claude Van Damme, where he was GR-13 in "Universal Soldier".
Before he was an Actor, he was a martial arts champion, and still was during the earlier years of his acting.
He has something like a 4th-degree black belt, I'm not really familiar with the belts, check out his Trivia section on this guide, but it's really good.
I think Dolph should have been a bigger star because he really is a great actor.
Some films I have saw on the TV Guides, I have never heard of, but when I notice Dolph Lundgren is in it, I watch it, no matter what it's called.
To this day he is still an actor, but I believe that if he was more used back in the 80's and 90's, he'd be one of the top Hollywood stars today.