Yokai is identical in build to Hackler, and the pair share their hood piece with Attila, Bansha, Howla, Ming, and Spyder. Yokai's legs are identical to those used for all Ghost Warriors except Morro, Bansha, Wrayth, and Soul Archer. His torso was also used for Attila, Ming, Pitch, Spyder, and Wail]]. Yokai's head is identical to that used for Cowler, Cyrus Ghurka, Ming, Pyrrhus, and Spyder.
- His name refers to the Japanese word for monster or demon in Japanese folklore.