tall hellhound with gray fur, red eyes, sharp teeth, and a punk-inspired style, often wearing dark, casual clothing. Aloof, sarcastic, and blunt, she works as I.M.P’s receptionist and handles communications and portal access. Though she appears lazy and antisocial, Loona is highly capable in combat and fiercely protective of those she cares about, especially her adoptive father Blitzo. Beneath her rough exterior, she struggles with insecurity and trust, showing moments of vulnerability, loyalty, and quiet affection.

Moxxie is a red-skinned imp with white freckles, pointy white hair, black-and-white striped horns, yellow slit-pupil eyes, and a long thin tail with a quadrilateral barb. Calm, practical, and highly skilled, he serves as I.M.P's weapon specialist and excels in musical talent, marksmanship, and acrobatics. Moral and thoughtful, he avoids unnecessary harm, values teamwork, and supports friends and family, especially his wife Millie, while navigating his quirky, often chaotic workplace.

Millie is a short red-skinned imp with a petite, pear-shaped figure, short black hair, thin black-and-white horns, yellow eyes, and a long devilish tail. Energetic, cheerful, and in fieece interest, loyalty and protectiveness of her husband Moxxie excels in melee combat, firearms, and creative weapon use. Skilled, intelligent, and musically talented, Mille balances her tough, ruthless assassin side with warmth, playfulness.