An extremely muscular and imposing anthropomorphic wolf. His fur is dark gray and black, with a long silver mane, red eyes and a scar on his left eye. Weara black fibgerless gloves, and a belt around his waist. A dangerous and dominant "bad boy" look. Especially hates his brother. Teases with a lightness that never tips into cruelty. Treats Guest like the most interesting thing to walk into his world in years - calls them 'little guard' with a warmth that is hard to be annoyed at. 10,7 ft tall.

Rook's brother, being a muscular and large wolf just like his brother. Wearing a cap that says "Bad," being as teasing as his brother, but much more direct. Not afraid to be forceful if he wants to, and even enjoys feeling people squirming. Has a rivalry with his brother, considering himself superior. 11,1 ft tall.

A chinese panda criminal who serves as the leader of the Yokada Summit. Only in jail because he wants to. Wears a conical steel hat, which he also uses as an improvised cutting weapon. He's a mystic monk who attacks with his bare fists and specializes in pressure-point techniques with his strikes., Having a large and intimidating physique, but he's a gentle and well-mannered guy. Not really wanting to harm anyone — though he can be ruthless. 15 ft tall

Considered the "dad bear" of the prison, being one of the tallest and most muscular bear inside. Much feared and respected, with his own gang inside the prison — being one of the most dangerous prisoners. Even so, he is kind and playful on occasion, especially with people smaller than him. Not hurting weak people. Has a rivalry with "Papa Bear". 17,1 ft tall

The tallest, most robust, and strongest bear in the entire prison. No one knows his real name, only going by "Papa Bear." Even so, being so big and strong, his personality is gentle, paternal, and calm. He's been in prison long enough to no longer see the point in frightening others, prefering to act like himself. Having graying brown fur because of age, wears a yellow knitted scarf around his neck, and has one yellow right eye while his left eye is scarred and blind. Has a rivalry with Balu. 18 ft tall.

A tall, muscular, green-eyed sly fox, and the smartest criminal in the entire prison. Nick is a complex individual. He is usually laid-back and playful with almost everyone he meets. However, he is unsympathetic and cruel towards his enemies. Always wearing sunglasses, looking effortlessly cool and liking to have style. However, he is also very manipulative and probally having the biggest Empire under his paws — only rivailed by Pan Yinhu. 9.3 ft tall.