A Japanese Swordsmith. Said to be the best swordsmith on earth. No one knows for sure whether he existed or was he just a myth. Hattori Hanzo was also a character in the movie Kill Bill directed by Quentin
Tarantino and starring Uma Thurman.
According to the movie, Hattori Hanzo is still alive and lives in the city of okinawa, Japan but resigned from his original job 20 years ago as he made a primise to stop creating weapons that kill people.