looking for reference

It's about the time to look for references for the hero.Well,in my imagination he is a very skillful mercenary and an experienced veteran specialized in his field of profession. So he will not be too young in this case.Somehow I  recall a movie called "Alatriste".The protagonist in the movie,Alatriste is a strong guy with dark brown hair.His appearance tells some characteristic that is similar to the  hero I'm trying to design.