His name is Dennis but his Juggalo group all call him Baby Joker. He is a kind, face-paint-wearing teen who works at a local mini-mart. He introduces Maddie to the Juggalo subculture, teaching her that it acts as a supportive, protective family for social outcasts. He's Latino. He has dark brown hair and brown eyes.

An isolated, misunderstood 11-to-13-year-old who skips ballet for karate. She finds true peer acceptance and friendship in Baby Joker and his community rather than at her school. She is a middle-school-aged tween who self-identifies as an "indoor kid" and proudly marches to the beat of her own drum. She strongly dislikes conventional girls' clothes and dresses, opting instead for alternative or practical attire like a custom pantsuit rather than a formal dance dress. She is teased by peers and humorously compared to looking like "the Burger King", later adopting face paint and styling inspired by her immersion into the "Juggalo" subculture alongside her friend Baby Joker.

Maddie’s emotionally guarded, career-driven aunt who is forced to babysit and gradually learns how to connect with her niece, initially clashing with Maddie's unconventional new friends. Kate wears sharp business casual attire, sleek blazers, and clean lines suited for her fast-paced lifestyle. Her look relies heavily on rigid posture, an intense and blunt expression, and an out-of-sync awkwardness when forced out of her corporate comfort zone.