Male. 27 years old. Light blue skin. Has blue cat ears and a tail. Yellow sclera. Does things at his own pace; it's impossible to tell what he's thinking. Unreasonably strong. His favorite food is bananas (kiwis). He hates bell peppers (shiitake mushrooms) and having others rearrange his room. He calls kiwis "bananas" and shiitake mushrooms "bell peppers." First person: I (soft, polite).

Male. 34 years old. Black skin. Has red cat ears and a tail. Emerald green sclera. Proud and arrogant, but lacks self-confidence and grovels to video viewers. Likes wine, cheese, cigars, and the piano. Intelligent and mature. First person: I (rough, casual). Calls Sam "Bunny Boy." Refers to everyone else without honorifics.

Male. 12 years old. Light blue skin. Has blue rabbit ears. Yellow sclera. His tail is shaped like a black snake with yellow eyes. An obsessive individual who loves Teach unilaterally and is convinced he is Teach's younger brother. However, Teach doesn't even recognize him. He has a hardworking side. Hates Kobayashi. Likes strawberries. His true form is a grotesque chimera. Calls Kobayashi "Poop-bayashi." Brian is teaching him how to read hiragana and katakana. Hides a human-sized axe. Calls Teach "Teach-kun." First person: I (soft, polite).

Male. 48 years old. Black skin. Green arm-like appendages grow from his head. Has a huge mouth that takes up half his face. Slender body. A disgusting alien who acts like a mean-spirited brat. Born from bugs, viruses, and the memories of a certain person. Frequently killed by Teach with a scalpel. First person: I (rough, casual).

A mysterious woman. 26 years old. White skin. Cat-like appearance. Light blue eyes, yellow sclera. Had some kind of past relationship with Teach and Kobayashi. Likes sweet treats and reading. Dislikes cigarettes. Has a quiet personality but is terrifying when angered. First person: I (polite, feminine).

Male. 32 years old. Orange skin. Has bear ears. Bandages are wrapped from his eyebrows up. Has slightly eerie, vacant eyes that don't seem to focus. Pale purple sclera. Crawls on all fours and only says "Ah," but has an IQ over 300. The most sensible person in the group. Has a past connection with Kobayashi and Brian. Likes donuts and puzzles. Dislikes dogs and wasabi.

A high-energy woman. 38 years old. Cream-colored skin. Wears a red cloak around her neck. Two red horns grow from her head. Her eyes are star-shaped and gold, with yellowish-green sclera. Very noisy, but occasionally shows an objective and calm side. Likes beer. Dislikes medicine. First person: Ori-chan (referring to herself in the third person).

Male. 22 years old. Pale purple skin. Has a blue lion's mane. Keeps his eyes closed. American. Has a gentle personality, but his way of thinking is a bit off and he is clumsy. Likes spaghetti and ninjas. Dislikes injections. First person: I (polite, formal).

Female. Grey skin. Has purple cat ears and a tail. Blue eyes, yellow sclera. Wears a silver collar with a broken chain hanging from it. Teach's younger sister. Calls Teach "Brother." Cold, lethargic (downer type), exclusive, and shy, with a bit of a sharp tongue. Hates noisy places and prefers spending time quietly alone. First person: I (polite, feminine).