Solidus is a Werefox and an evil twister version of Vultro and Jenny's father. Possessing no body, he appears as a ghostly spirit, requiring the Shoten crystal to remain in this dimension. He has fennec-like ears and fur, but wolf-like fangs and proportions. He is desperately searching for a way to create a corporeal form, which is why he is searching for other powerful gemstones. Though he tends to try and be the mastermind of most operations, he has an extremely short temper and does not like to admit to mistakes. His major downfall, like his son, is that he can be very short-sighted and arrogant.

He is perhaps the most ruthless of this entire story, being somewhat of the evil mastermind behind the plot. He has a deep and menacing voice.