Dragon God
The guard of Ryuujin’s Orb inside Mount Fuji. He is the one that tested Yaiba in order to give the power of Ryuujin. He looks like an old samurai/shogun.
He reappears during the final battle against Kaguya to advise Yaiba, and seemingly vanishes when the battle is over. He reappears once more during the Yamata no Orochi arc to stop Onimaru and ends up sacrificing himself to defeat Dark.
