Grunt doesn't quite have a name, as he is so low in the social hierachy. He helped out Samanosuke and Kaede in Onimusha: Warlords, and is also a major asset to the Japanese army. He wields a standard issue katana, and fights with the samurai style.
- Judging by the crest on banner that he sometimes wears on his back in the game, it seems that he is either a member or a retainer of the Akechi clan. This may be the reason for his assistance to Samanosuke.