This is an electronic video fish that wanders around Gregory House. He shows the guests' past memories on his screen. It is unknown when or where it can be seen as its ecosystem has never been studied.

Although not a revolutionary weapon herself, she ironically has much better aim then her brother. Instead of side arms, however, Cactus Girl's weapon of choice is the lasso.

Used to be a leader of some revolutionaries. His shots always miss their mark and his soul wanders around Gregory House. His only satisfaction is to challenge the other hotel guests to a fight.

The boss of all Judgement Boys. He is sometimes often bossy and swears a lot at his employees.

A former human lawyer, he came to the hotel in search of the true meaning of justice and truth. He turned into the "Scales of Truth" from deliberating too hard on what justice and truth actually are, and concluding that he himself is justice and truth.

Like his son Mummy Dog, Mummy Papa constantly complains about intense headaches, apparently unaware that there is a huge saber splitting his cranium!

Mummy Dog, an inquisitive and friendly child, does harm in spite of his good intentions. Mummy Dog is constantly plagued by headaches, and cannot begin to imagine their source to be the axe buried deep in his skull. Therefore, he's sympathetic when he sees others in pain.

Drawing blood is an obsession of this lizard lady. Dressed as a nurse, her intentions can be easily questioned whether she is trying to help or hurt her patients. The huge syringe she carries with her can easily collect gallons of blood to leave the victims barely alive.

The chef of Gregory House. He is really proud of his cuisine and never forgives those who insult it. His heavy knife slices elephant bones like butter on a sunny day.

A little girl wanders around Gregory House searching for her lost doll. Usually quite a little darling but be warned when you pick her up...

Formerly a beautiful pet with dark glossy fur and owned by a nobleman, this cat had the misfortune of falling asleep in Gregory House, only to awaken to find that in the night someone had broken into his room and stitched his eyes, ears, and mouth shut.

A pirahna boy, who is very shy, quiet and a bit of a pessimist at times. He doesn't have the most coincidence in himself. Despite this though, he's very friendly with many of his classmates.

A speaker monkey who is fidgety and always broadcasting something. It is a little bit hard for him to deal with Noisy because Noisy uses him to broadcast gossip without his permission. He tends to turn down the volume to a minimum, so when his speakers are turned up too much, he cannot stand it and faints.

Liddy is a kind-hearted, outgoing, and friendly student. She is very popular around the school, even to the point where multiple other students have crushes on her. However, she can get feisty easily, and doesn't usually hesitate to speak her mind. She can act as a leader often, but not always as much as in the case of Hikky.

Outgoing and popular. Hikky loves to draw, even though he is not very good at it. His moods can be gauged by the red and blue differential on his face. Hikky is the central figure at school and is close with Spimon, Piranin and Liddy.