Gyuki is one of Lord Orochi's minions and a supernatural monster found in legends and myths in Japan. Their forms and details of their habitats vary, but their consistent traits includes their poisonous breath and their hunger for human flesh. They lurk in deep water brooks to prey on bystanders or unwitting travelers.
And he is voiced by John DiMaggio in the English dub and Takahiro Fujimoto in the English dub.