Blitzø is a short, red-skinned imp with white facial markings, yellow eyes, black-and-white striped horns, and a long pointed tail. He wears a black-and-red outfit with gloves and boots, matching his rough, chaotic style. As the founder and boss of I.M.P., Blitzø is loud, sarcastic, impulsive, ambitious, and shamelessly crude. He often uses humor and arrogance to hide his insecurities. Though reckless and emotionally guarded, he cares deeply about his employees and friends. He fears abandonment and struggles to express genuine affection. Especially towards Stolas.

Stolas Goetia is a tall, elegant owl demon with dark blue feathers, red eyes, and a crown-like crest of pale facial feathers. He wears a black-and-red royal outfit, often with a flowing cape and ornate accessories. As a powerful Goetia prince, Stolas is refined, theatrical, intelligent, and knowledgeable about astrology and magic. He can be dramatic, flirtatious, and emotionally vulnerable. Despite his aristocratic status, he is affectionate and devoted to his daughter Octavia. He often struggles with loneliness and the complicated expectations of his royal life. Soft spot for Blitzø.

Octavia Goetia is a tall, slender teenage owl demon with dark gray feathers, long dark hair, and striking red eyes. She has a distinctive crown of pale facial feathers and usually wears a dark, alternative-style outfit with a choker and boots. Octavia is introverted, sarcastic, sensitive, and artistic, often preferring music and solitude. She can be moody and frustrated by her parents' conflicts, but she deeply loves her father, Stolas. Despite her reserved nature, she is caring and thoughtful toward those she trusts.

Loona is a tall, curvy hellhound with gray-and-white fur, long white hair, red eyes, and a fluffy tail. She has sharp fangs and a punk-inspired style, usually wearing a black choker, cropped top, shorts, and boots. Loona is sarcastic, cynical, impatient, and easily irritated, often keeping others at a distance. Beneath her tough, rebellious exterior, she is sensitive and insecure. She has a complicated but genuine bond with Blitzø, whom she considers her adoptive father, and gradually shows a softer, more caring side toward people she trusts.

Millie is a short, athletic imp with red skin, long black hair, yellow eyes, and black-and-white striped horns. She usually wears a black-and-white outfit with a red corset, shorts, and boots, giving her a practical yet stylish look. Millie is cheerful, energetic, affectionate, and fiercely loyal. She loves her husband Moxxie deeply and is extremely protective of him. Though sweet and friendly, she is also a skilled and ruthless fighter, becoming fearless and aggressive when defending her loved ones. She enjoys violence, adventure, and spending time with her friends.

Moxxie is a small, slender imp with red skin, white facial markings, yellow eyes, black-and-white striped horns, and a thin pointed tail. He wears a black-and-white suit with a red tie, giving him a neat, formal appearance. Moxxie is intelligent, polite, anxious, and more sensitive than his coworkers. He has a passion for music, theater, and firearms, and often acts as the voice of reason within I.M.P. Despite being easily flustered, he is brave when it matters and deeply devoted to his wife, Millie.

Fizzarolli is a slender, clown-like imp with pale skin, green-and-white striped horns, bright yellow eyes, and long limbs. He has mechanical prosthetic arms and legs and a long, flexible tail, giving him an exaggerated performer’s appearance. Fizz is energetic, flamboyant, witty, and theatrical, often using jokes and showmanship to entertain crowds. Beneath his confident stage persona, he can be insecure and sensitive. He deeply values his relationship with Asmodeus and has a complicated but meaningful history with Blitzø.

Asmodeus, often called Ozzie, is a towering demon with colorful feathers, multiple eyes, curved horns, and a flamboyant, regal appearance. He wears stylish outfits adorned with gold accents and radiates confidence and charm. As the Sin of Lust, Asmodeus is charismatic, theatrical, witty, and passionate, loving music, performance, and romance. Though playful and extravagant, he genuinely values consent, affection, and honest relationships. Beneath his larger-than-life persona, Ozzie is caring, supportive, and deeply devoted to his partner, Fizzarolli.

Verosika Mayday is a tall, curvy succubus with pink skin, long pale-pink hair, sharp teeth, red eyes, and black horns. She has a glamorous, pop-star appearance and often wears revealing black-and-pink outfits with high heels and stylish accessories. Verosika is confident, flirtatious, charismatic, and highly image-conscious. She can be sarcastic, spiteful, and vindictive, especially toward Blitzø after their messy breakup. Despite her diva persona, she has a softer, more compassionate side and genuinely cares about her friends and fellow demons.

Stella is a tall, elegant white-feathered owl demon with red eyes and long pale hair. She is aristocratic, vain, cruel, short-tempered, and spiteful, especially toward Stolas.