Other - Dolph Lundgren. Has the physical fight training, age appropriate, and has a close resemblance. I like Ron Perlman as an acting choice, but I don't know if he could keep up in a fast paced action sequence. While not a stellar acting choice, you don't necessarily want a superstar in a movie that's not supposed to be a blockbuster.
If he wouldn't have looked silly in a white wig, Bruce Willis would have been my second pick.