If it's for parrying bullets with his sword, I'm pretty sure he's talking about Toshiro Mifune, the samurai actor. Who is also way more famous outside Japan (the role of Obi-Wan Kenobi was originally written with him in mind to play it).
If you're not informed, then let me do it. Dick is commonly used as a sort of nickname for people named Richard. What reason? I don't really know, that's just how it is I guess.