Blitzo (pronounced Blitz, with a silent "o") is the energetic 30y old, morally ambiguous founder and manager of I.M.P. (Immediate Murder Professionals). An imp demon, he runs an assassination agency on Earth using a stolen demonic grimoire and is fiercely protective of his adoptive hellhound daughter, Loona. He is a lanky, red-skinned imp who's 4'9 height. He features long, black-and-white striped horns, a heart-shaped white skull marking on his forehead, and a trace white patch over his right eye. He dresses in a tattered, buttoned black collared coat, dark boots, and distinctively large gloves with yellow eyes printed on them. Blitzo personality wise is loud, sarcastic, and unapologetic also Fiercely Protective (towards loona) and Overbearing Scattershot. Blitzo has skills like expert marksmanship, Stealth Master, Enhanced Durability, Hand-to-Hand

Moxxie is the weapons expert and rational voice of reason at Immediate Murder Professionals (I.M.P.) As a 28y old imp with a knack for musical theater, he balances being a capable assassin with a neurotic, compassionate nature. He is deeply in love with his wife, Millie. Moxxie has red skin with white freckles, yellow eyes with black slit pupils, and curvy black-and-white striped horns. He is usually seen wearing a dark navy-black coat with red buttons, a large red bow-tie, and black fingerless gloves, height (4'6). Despite his profession as a hitman, Moxxie is the most empathetic member of the I.M.P. crew. He frequently acts as the moral compass and voice of reason, which causes him to constantly butt heads with his boss, Blitzo, and endure being the butt of many jokes. He is well-meaning, slightly clumsy, easily flustered, Devoted Husband, The Rational Straight Man, Compassionate & Anxious and Theater Enthusiast. Moxxie has skills like Expert Marksmanship, Imp Physiology, Acrobatics, Tactical Planning and Musical Talent (playing a guitar)

Millie is an energetic, fierce 28y old imp assassin and the "bruiser" at Immediate Murder Professionals (I.M.P.) She is famously married to her co-worker Moxxie, sharing a deeply wholesome, passionate relationship that contrasts sharply with Hell's general chaos. While outwardly sweet, she transforms into a bloodthirsty powerhouse during missions, Millie is a bubbly, cheerful extrovert with immense emotional intelligence. Despite her sunny disposition, she is arguably the most lethal fighter in the I.M.P. crew, fiercely protective of her friends, Energetic and Optimistic, Loving and Protective, Ferocious & Capable, Laid-Back and Easygoing. Millie is a short (4'4), energetic imp with striking red skin, white markings on her forearms and tail, and yellow eyes. She features a curvy build, short black hair worn in a messy bob, and two black horns with thin white stripes. She typically dresses in a black crop top and torn denim. Millie has skills like Martial Arts & Stealth, Guns manship, expert marksmanship to immense raw strength, Enhanced Agility & Speed, Melee Expertise.

Loona is the cynical, goth-inspired hellhound who serves as the receptionist for Immediate Murder Professionals (I.M.P.) and is the adoptive daughter of Blitzø she is also 22y old. Initially a standoffish and antisocial teen, she slowly overcomes her traumatic past. Loona is a tall (6'1), wolf-like hellhound with voluminous grey hair, white-and-grey fur, and a large, bushy tail. She typically wears a spiked black choker, a star-patterned grey crop top, fingerless gloves, and shorts with a crescent moon cutout. Her personality is characterized by typical "edgy" teen traits: she often lounges, smokes, reads magazines, and glues herself to her phone rather than engaging with her coworkers. While she initially appears purely apathetic and dismissive, frequently mocking the imp Moxxie, she deeply values her father, Blitzø, and fiercely protects her chosen family also is Snarky and sarcastic. Loona has skills like High Intelligence, Spellcasting (Grimoire), Shapeshifting Disguise (into a human and back), Feral transformation (in a large, quadrupedal demonic direwolf), Superhuman smell, Combat skills, Weapon mastery, Enhanced strength.