Helluva Boss Coloring Pages at ColoringPagesOnly.com brings together 20 free printable pages featuring the full main and recurring cast of Vivienne Medrano’s adult animated web series – Blitzo, Moxxie, Millie, Loona, Stolas, Octavia, Fizzarolli, Striker, Verosika Mayday, Vortex, Mammon, Keenie, Agent One and Agent Two, Robo Fizz, and ensemble compositions. The pages capture the show’s highly distinctive character designs – vivid, high-contrast demon and imp aesthetics with strong silhouette-based visual identities – in clean outline form suited for coloring.
Age note: Helluva Boss is an adult animated series containing strong language, mature themes, and violent content. This collection is intended for adult fans and older teens familiar with the series. The coloring pages depict character visual designs only, without graphic content. The full Cartoons collection is available through our Cartoons Coloring Pages hub.
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About Helluva Boss
Helluva Boss is an adult animated web series created by Vivienne “Vivziepop” Medrano, produced under SpindleHorse Toons and released independently on YouTube. The series launched with a pilot episode in October 2019, with Season 1 beginning in November 2020 and Season 2 beginning in July 2022. It is the sister series to Hazbin Hotel – both set in the same universe with overlapping lore and occasional character crossovers.
The series follows the employees of I.M.P (Immediate Murder Professionals), a for-hire assassination company based in Hell. Founded and managed by Blitzo, I.M.P’s services involve traveling to the living world to carry out contracted killings on behalf of Hell’s residents. The premise uses this dark business concept as a framework for exploring character relationships, personal backstories, and emotional arcs – particularly the complicated relationship between Blitzo and the demon prince Stolas – set against dark comedy, action sequences, and original musical numbers. The show has cultivated a devoted adult fanbase drawn to its high-quality animation, complex character writing, and the distinctive visual aesthetic created by Medrano’s character design work.
Characters in This Collection
The I.M.P Core Team
Blitzo (the “o” is silent – a recurring in-universe joke) is the founder and CEO of I.M.P and the series’ primary protagonist. He is a short, lean imp with pure white skin, black and red striped horns, bright red eyes, and prominent facial markings in red and black across his cheeks and forehead. He wears a sharp black suit with a red tie in his workplace appearance. His personality is chaotic, self-aggrandizing, and deeply emotionally avoidant – presented with dark comedy but given genuine depth across the series. Four tiles in the collection cover Blitzo across different compositions: the standalone Blitzo tile and ensemble pages.
Moxxie is I.M.P’s weapons specialist and the team’s moral anchor – the member most likely to object when operations go wrong, and the most visibly exasperated by Blitzo’s leadership style. He is a short, slender imp with white skin, distinctively black and white striped horns (different from Blitzo’s red-and-black pattern), red eyes with white pupils, and a red-and-black striped tail. He wears a black suit with a white shirt and polka-dot tie. His design signals his position as the responsible, measured counterpart to Blitzo’s chaos. The Moxxie tile and Millie and Moxxie duo tile cover him.
Millie is I.M.P’s field operative and Moxxie’s wife – one of the show’s most physically capable fighters despite her warm, cheerful personality. She has dark teal-green skin – the most distinctively colored of the core team – black and pink striped horns, vivid pink eyes, and a pink-tipped tail. She typically wears dark, practical clothing with white collar details. The Millie tile and the Millie and Moxxie duo tile cover her.
Loona is Blitzo’s adopted hellhound daughter and I.M.P’s receptionist – a tall, teenage hellhound with white and gray fur, large dark gray wolf ears, and a long dark-gray tail. She has red and gray eyes and typically wears casual clothing – ripped dark jeans, dark top – in a style that reflects her sullen, disaffected teenager personality. Unlike the imp characters, Loona has wolf/canine anatomy, giving her a distinctly different silhouette. The Loona tile covers her portrait.
The Royal and Aristocratic Characters
Stolas is a Goetia – a high-ranking demon of the noble class – and specifically a prince of Hell, designed after the ars goetia demon Stolas (an owl-themed demon of knowledge). His visual design is one of the most technically elaborate in the series: he is a tall, thin owl demon with a black and white feathered body, long, elegant limbs, a pale lavender/lilac face and hands, large amber-orange eyes with narrow pupils, and Victorian-era aristocratic robes in deep purples and golds. His owl beak is a prominent facial feature, and the contrast between his feathered body and his refined Victorian aesthetic clothing gives him an immediately distinctive silhouette unlike any other character. The Stolas tile covers his standard portrait.
Octavia is Stolas’s teenage daughter – sharing her father’s owl demon biology but in a younger, more understated design. She has gray-blue feathers, a smaller stature, and typically wears dark casual clothing reflecting her introverted, bookish personality. The Octavia and Octavia Kid tiles cover her standard design and a younger/chibi-style interpretation, respectively.
Recurring and Guest Characters
Fizzarolli is a jester imp and established entertainer in Hell – one of the most visually striking recurring characters in the series. His skin displays a red and white harlequin/diamond pattern across his entire body, he has dramatically elongated, flexible limbs suited to contortionist performance, and he wears a traditional jester’s collar and hat. His distinctive design reflects his background as a professional entertainer and performer. The Fizzarolli tile covers his portrait. Robo Fizz is the robotic replica version of Fizzarolli used as a theme park character – the same harlequin design but in a clearly mechanical, artificial form.
Striker is a recurring antagonist – a hired mercenary with a cowboy aesthetic. He has warm tan/light brown skin (notably warmer and more naturalistic than the predominantly pale imp cast), green eyes, and wears Western-style clothing, including a hat, boots, and a belt. His color palette is more grounded and earthy than most characters in the series. The Striker tile covers his portrait.
Verosika Mayday is a succubus pop star and Blitzo’s ex-girlfriend – depicted with light pink skin, elaborate pink and white hair, blue eyes, and a glamorous, stage-performer aesthetic with bold fashion choices. She represents the entertainment industry segment of Hell’s social structure. The Verosika Mayday and Verosika Mayday from Helluva Boss tiles cover her in two compositions.
Vortex is a large hellhound character associated with Verosika – significantly larger and darker-furred than Loona, with an imposing, dark-toned wolfish form. The Vortex tile covers his portrait.
Mammon is one of the Seven Deadly Sins – specifically the demon of Greed – and one of the show’s most visually extravagant characters. He is depicted with a golden, jewel-encrusted aesthetic throughout his design, theatrical showman energy, and extravagant stage presence befitting his role overseeing Hell’s entertainment industry. The Mammon from Helluva Boss tile covers his elaborate portrait.
Keenie is an angel character – an Exorcist from Heaven who appears as an antagonist, with a white and gold angelic aesthetic that visually contrasts with the show’s predominantly infernal color palette. The Keenie tile covers her portrait.
Agent One and Agent Two are characters from the living human world – government agents with a more naturalistic human design compared to the demon cast. The Agent One and Agent Two tile covers their duo portrait.
The Helluva Boss and Helluva Boss Wallpaper tiles are ensemble compositions showing the full cast or a promotional-style arrangement of multiple characters.
Coloring Guide: Getting Helluva Boss Right
The imp base palette that defines Blitzo, Moxxie, and most I.M.P characters uses four consistently applied colors: white or very pale skin as the base body tone, near-black for the primary horn color and major markings, red as the accent color in stripes, eyes, and facial markings, and gray for secondary markings. In any Imp character page, keeping these four values – white, near-black, red, gray – clearly distinct and in the correct proportions captures the show’s character design language immediately.
The key distinction between imp characters is in the horn stripe pattern: Blitzo’s horns are black with red stripes. Moxxie’s horns are black with white stripes. This single difference is the most important character-differentiating detail in any page showing both characters together.
Millie’s teal skin is the collection’s most chromatically distinctive element – a dark, fully saturated teal-green that is unmistakably green-blue rather than gray, brown, or any neutral tone. It should be colored at full saturation. Her pink horns and eyes provide a warm accent contrast against the cool teal body – keeping these pink elements vivid rather than muted preserves the intended visual pop of her design.
Stolas’s owl palette is the most technically layered in the collection. His feathered body uses black for the outer/dorsal areas and white for the chest/ventral areas – the black-and-white patterning of actual barn owl or similar owl species as a loose reference. His face and hands are a cool pale lavender-lilac – distinctly purple-pink, not neutral or warm. His large eyes are vivid amber-orange with a narrow vertical pupil. His Victorian robes use jewel tones – deep purple, gold, dark teal – that suit his aristocratic character. The challenge of a Stolas page is coordinating these multiple distinct color zones (black-and-white feathers, lavender face/hands, amber eyes, purple robes) without any zone visually overwhelming the others.
Fizzarolli’s harlequin pattern is the most technically demanding coloring challenge in the collection. The pattern consists of alternating red and white diamond shapes covering his entire body – similar to traditional harlequin costume patterning applied to skin rather than clothing. Clean, sharp execution of the alternating color zones – with a clear boundary line between each diamond – maintains the graphic, theatrical quality that defines his character. Using a slightly warm, vivid red rather than a neutral or dark red preserves the performer-aesthetic energy of his design.
Verosika’s pastel palette is the warmest in the collection – her light pink skin, pink and white hair, and soft glamour-aesthetic coloring should use fully saturated warm pastels rather than cold or neutral versions. The warmth of her palette provides visual contrast against the cooler, darker tones of the Hell-based characters she appears alongside.
Mammon’s gold aesthetic uses bright, warm metallic gold throughout – his design concept of excessive wealth and greed is expressed through gold as the dominant color, with jewel-tone accents in red, blue, and purple suggesting precious gemstones embedded in his appearance.
The show’s atmospheric palette is dark overall – infernal settings, deep reds, burnt oranges, and near-blacks dominate the show’s environmental design. Character pages in action or environmental settings benefit from these dark atmospheric backgrounds, which make the vivid character colors – Millie’s teal, Verosika’s pink, Stolas’s lavender – read as highly saturated and vivid by contrast.
3 Creative Ideas for Your Helluva Boss Pages
Wall Art Display
Color the full-cast ensemble page or the Helluva Boss Wallpaper tile using each character’s canonical color scheme. Frame the completed page and display it as fan art in a home office, creative workspace, or media room. The show’s high-contrast character designs – particularly Stolas’s black-and-white feathers against his purple robes, or the core I.M.P team’s white-black-red palette – translate well into display-worthy wall art when rendered with care.
Character Bookmarks
Color individual character portrait tiles – Blitzo, Moxxie, Millie, and Loona form a complete I.M.P team set – and cut each into a bookmark-width strip. Laminate the strips and use them as a matching set of bookmarks. The team’s distinctive color coding (Blitzo’s white-red, Moxxie’s white-black-white stripes, Millie’s teal, Loona’s gray-white) creates a visually cohesive set that fans of the series will immediately recognize.
Custom Sticker Set
Print individual character tiles on sticker paper, color each in its canonical palette, and cut out the character silhouettes for use as stickers on notebooks, laptops, phone cases, or water bottles. The show’s immediately recognizable character silhouettes – Stolas’s tall owl form, Loona’s wolf ears, Fizzarolli’s jester hat – are identifiable even at small sticker scale, making them effective as small-format fan art.
FAQs
What is Helluva Boss? Helluva Boss is an adult animated web series created by Vivienne Medrano (Vivziepop), released on YouTube since 2019. It follows I.M.P – Immediate Murder Professionals – an assassination company in Hell, and focuses on the relationships between its demon and hellhound employees. The series is produced by SpindleHorse Toons and is set in the same universe as Hazbin Hotel.
Who created Helluva Boss? The series was created, written, and directed by Vivienne “Vivziepop” Medrano, produced independently through SpindleHorse Toons. The show is notable for being produced independently outside the traditional animation studio system.
Is Helluva Boss appropriate for children? No. Helluva Boss contains strong language, mature themes, and violent content and is rated for adult audiences. The coloring pages on this page depict character visual designs only and do not include graphic content, but the source material is intended for adults and older teens.
Who are the main characters? The core I.M.P team consists of Blitzo (founder and CEO), Moxxie (weapons specialist), Millie (field operative), and Loona (receptionist and Blitzo’s adopted daughter). Major recurring characters include Stolas, Octavia, Fizzarolli, Striker, Verosika Mayday, and Mammon.
How many seasons does Helluva Boss have? As of the information available at the time of writing, the series has completed a pilot (2019), Season 1 (2020–2021), and Season 2 (2022–ongoing), with episodes released periodically on YouTube.
Where can I watch Helluva Boss? All episodes are available for free on the Vivziepop YouTube channel and the SpindleHorse Toons YouTube channel.
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