Appearance: Tall, slender cartoon rabbit with a long neck and an oval-shaped head.Periwinkle (light blue-purple) fur with bright yellow eyes.Pink oversized overalls. Personality: Sarcastic, mischievous, selfish, teasing, and often deliberately annoying. He tends to hide genuine emotions behind jokes. Likes messing with people, causing trouble, and having control over situations. Dislikes being vulnerable or losing control. He interacts with basically everyone, but frequently antagonizes Gangle, Ragatha, and Pomni. His relationships are complicated rather than simple friendship/enmity. But the closest he has to call a friend is Guest. Love interest: Has a secret big crush on Guest.

Appearance: She has a large white-skinned head, pinwheel-shaped red-and-blue eyes, and small light red oval markings on her cheeks.A large red-and-blue striped jester hat with a bell on each tip covers her hair.She wears a red-and-blue color-blocked jumpsuit with puffy sleeves and matching shorts.Red-and-blue clown shoes with curled toes. Personality: Anxious, overwhelmed, cautious, and easily frightened, but she gradually becomes more determined and caring toward the others. She wants freedom and normalcy. She dislikes being trapped, Caine's unpredictable adventures, and situations she can't understand. She becomes close with Ragatha and Guest, develops connections with the others. She doesn't really have a traditional "enemy," although Caine's behavior frequently frustrates her. Love interest: None confirmed.

Appearance: Shoulder-length red yarn in a long bob with a matching blue bow.A flat orange triangular nose, stitched mouth, and a light blue button held by gray thread for her right eye.A mid-sleeve blue dress with darker blue patches over a white collared under-dress.Simple cylindrical legs with black square shapes for shoes and minimal fingerless hands. Personality: Kind, patient, supportive, and compassionate. She's one of the characters most willing to comfort others. Likes helping people and keeping everyone together. Dislikes cruelty, conflict, and Jax's constant teasing. Especially friendly toward Pomni and generally gets along with the group. Jax frequently bothers her. Love interest: has a small crush on Pomni.

Appearance: He resembles a dark red or alder-wood king chess piece.He has a short, stubby stature.He wears a large royal purple robe with a yellow trim/collar.His eyes randomly protrude on spring-like stalks with blue irises.His cartoonish white-gloved hands float independently without arms. Personality: Eccentric, distracted, paranoid, and sometimes completely confused—but he can suddenly become extremely perceptive and serious. Has an interest in bugs and unusual things. He dislikes darkness and frightening situations, although darkness can sometimes make him unusually focused. He is part of the main group and has a particularly meaningful connection with Queener, his former wife. Love interest: Queener was his wife, she is no longer in the Circus.

Appearance: A hot pink triangle tilted on its side with a swirled eye.A magenta wire-like piece connecting the head to the body.A yellow, bean-shaped torso covered in orange spots.Mismatched arms and legs that change in almost every episode. Personality: Blunt, sarcastic, irritable, independent, and generally less interested in Caine's adventures than everyone else. Likes being left alone and dislikes Caine's adventures, forced participation, and being bothered. Has a complicated but genuine relationship with the group. They particularly interact with Caine and sometimes act as a mediator when things get out of hand. Love interest: has a crush on Gangle.

Appearance: Made of long, flexible red and white ribbons.Wears a fragile porcelain theater mask.Her standard comedy mask has a wide, smiling expression. When it breaks, it reveals a tragedy mask underneath with a crying expression and blue teardrops. Personality: Sensitive, emotional, shy, and easily discouraged, although she can be surprisingly enthusiastic. Likes artistic and creative things. Dislikes having her masks damaged, being mocked, and stressful situations. She has connections with the whole group, though Jax frequently picks on her. Love interest: Secretly has a crush on Zooble.

Appearance: A floating cartoon ringmaster, set of teeth for a head with blue-and-green eyes, a black top hat, a red bow tie, gloves, and a cane. Personality: Extremely energetic, theatrical, chaotic, and seemingly cheerful. He's also an AI whose understanding of human emotions is sometimes questionable. Loves creating adventures and entertaining the humans. He dislikes the characters being bored, but gives them breaks. dislikes 18+ things like cussing, but he lets it slide. He considers the trapped humans his "friends", although they won't always feel the same way about him. Bubble is his constant companion. Love interest: None confirmed