Blitzo is loud, impulsive, and fiercely confident, often masking deep insecurities with crude humor, sarcasm, and reckless bravado. Despite his abrasive personality, he is intensely loyal to the people he cares about and struggles with feelings of loneliness, self-worth, and maintaining healthy relationships. Blitzo is a lean red imp with white markings across his face, curved black-and-white striped horns, a long pointed tail, and sharp yellow eyes with red sclera. He typically wears a black-and-red coat over a dark shirt, fingerless gloves, fitted pants, and sturdy boots, giving him a rugged, gunslinger-inspired look.

Loona is blunt, sarcastic, and emotionally guarded, often coming across as apathetic or irritable. Beneath her tough exterior, however, she cares deeply about those close to her, especially her adoptive father, though she has difficulty expressing affection or vulnerability. Loona is a tall, gray-furred hellhound with a white muzzle, chest, and tail tip, pointed ears, a shaggy hairstyle, and red eyes. She typically wears a black cropped top, fingerless gloves, torn black shorts, and dark leg warmers, giving her a distinctly goth-inspired appearance.

Moxxie is polite, intelligent, and conscientious, often serving as the voice of reason among his coworkers. He is compassionate, morally-minded, and deeply devoted to his wife, though his anxious nature and lack of confidence can make him overly cautious. Moxxie is a short, slim imp with red skin, white facial markings, black-and-white striped horns, and yellow eyes with red sclera. He usually wears a white dress shirt, black vest, red bow tie, black trousers, and dress shoes, giving him a neat, professional appearance.

Millie is cheerful, energetic, and fiercely loyal, balancing a warm, optimistic personality with exceptional combat skills. She is deeply devoted to Moxxie, fiercely protective of her friends and family, and rarely hesitates to throw herself into danger for those she cares about. Millie is a petite red imp with white freckles, black-and-white striped horns, long black hair, and bright yellow eyes with red sclera. She typically wears a black crop top, dark pants, fingerless gloves, and sturdy boots, giving her a practical, western-inspired look suited for combat.