Gaoh Kyougoku Hinowanokami or just Gaoh is the main villain and final boss of Samurai Shodown V.
Gaoh was the lord of the Hinowa province and one of the Tokugawa's generals, as well as the mentor of Yoshitora Tokugawa, current heir to the shogunate. When the Tenmei famine hits the land, Yoshitora and his father become indifferent to the situation, bringing even more chaos. Unable to take it any longer, Gaoh stages a rebellion against the shogunate, gathering various followers to his cause. Seeking for the power to succeed, Gaoh allowed himself to be possessed by the Dark Emperor
When Yoshitora hears about Gaoh's rebellion, he reluctantly goes after his former master to stop him. Various other warriors also go after him for their own motives. The two eventually fight each other, with the Dark Emperor fully taking control over Gaoh's body before being defeated. Liu Yunfei, who had been possessed by the Dark Emperor before, draws out the demon into his own body, so that Gaoh could finish him for good. Now free from his possession, Gaoh begs for Yoshitora to take his responsibilities as shogun for the sake of people, which Yoshitora finally agrees, as the final wish of his former master.
Demon Gaoh is the final boss of Samurai Shodown VI/Samurai Spirits Tenkaichi Kenkakuden. He appears as a demonic form of Gaoh, who is said to have successfully tamed the Dark Emperor, using it's power to take over Makai so as to stop the demons from invading our world, but becoming himself a demon in the process. This form, however, does not exist canonically, since Samurai Shodown VI is only a dream match title and thus not canon.
- Gaoh's design was based on Oda Nobunaga.