Loona Costume From Helluva Boss – Halloween 2026 Guide

Q: How do I dress like Loona for Halloween 2026?

You need a grey crop top, a pentagram body harness over it, grey fox ears, scalloped black shorts, a dark grey wavy ponytail wig, a spiked goth collar choker, grey leg warmers, grey arm warmers, red contact lenses, a black furry tail, and werewolf shoe covers. The grey crop top with the pentagram harness and the spiked choker are the two essential pieces. Without both, the costume reads as generic goth rather than specifically Loona.

Q: Is the Loona costume still a good choice for Halloween 2026?

It is a niche but dedicated-fanbase choice. Helluva Boss has a passionate following in the adult animation and indie animation communities, and Loona is one of the most recognizable characters from the show. Outside of that fanbase, recognition is limited, but the costume reads well as a goth hellhound aesthetic even to people who have never heard of the show.

Q: What are Loona's most famous quotes?

Three lines that cover the full range of her personality: "Oh, sit on a dick, Moxxie" (her default setting with coworkers), "Is it a cure for Syphilis?" (her response when Blitzo gives her a gift), and "I'm hungover from this morning, dumbass!" (her explanation for drinking on a work night, to Millie, who asked). The second one is the best party line because it works as a response to almost anything anyone hands you.

Q: Do I need the red contact lenses for the Loona costume?

They are optional but they are the detail that completes the hellhound look. Loona has bright red sclera in the show, which is distinctive and immediately recognizable to fans. Without them, the costume reads as a goth wolf girl; with them, it reads as specifically Loona. Always buy contact lenses from a reputable seller and never share them.

Loona Halloween Costume Items

Loona Halloween costume infographic showing all 11 items including grey crop top, pentagram harness, spiked choker, grey wolf ears, dark grey wig, black shorts, red contacts, furry tail, and werewolf shoe covers from Helluva Boss

Loona Costume Items

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Loona Helluva Boss Hellhound I.M.P

1 Grey Crop TopCritical item. The grey off-the-shoulder crop top is the foundation of the costume. It needs to be grey, not white or light blue. The color matches Loona’s grey fur and is the base on which the pentagram harness sits. Check the shade in the same light you will be in at the party.
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2 Pentagram Body HarnessCritical item. Loona’s crop top has crisscross spaghetti straps that form an inverted pentagram at the neckline. This harness worn over the grey crop top replicates that detail. It is the most visually specific element of her outfit and what separates this from a generic goth wolf costume.
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3 Grey Fox EarsLoona’s ears are dark grey, pointed, and wolf-like. One is ragged at the tip. The ears sit back on the head over the wig. Grey rather than black or white, which are the common alternatives and both read differently.
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4 Scalloped Black ShortsLoona’s shorts are black with tattered hems and a white crescent moon on the right side. The scalloped hem approximates the tattered look. The moon detail on the shorts is a reference to her name, which derives from Luna, the Latin word for moon.
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5 Dark Grey Wavy Ponytail WigCritical item. Loona has long, voluminous silver hair swept to one side. Without the wig, the costume loses the hair silhouette that is one of the most recognizable things about the character. Dark grey rather than silver-white for the closest color match.
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6 Spiked Goth Collar ChokerCritical item. The big spiked black choker is one of the most recognizable accessories on the character and the detail that most people associate with Loona before anything else. Without it, the goth hellhound read is missing its anchor piece.
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7 Grey Leg WarmersCovers the legs in Loona’s grey fur coloring. Pulled up over the shoe covers once those are on. The grey matches the arm warmers and the rest of the costume’s color scheme.
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8 Grey Arm WarmersCovers the arms in the same grey as the leg warmers and the crop top. Loona wears black fingerless gloves in the show, so the arm warmers with the fingertips left uncovered is the closest ready-made option.
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9 Red Colored Contact LensesLoona has bright red sclera, which is the single most striking facial feature of the character. The contacts are optional but they complete the hellhound look in a way nothing else does. Always purchase contact lenses from a reputable retailer and never share them with anyone.
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10 Black Furry TailLoona has a large dark grey bushy tail. A black furry tail is the closest practical option. Attach it at the back of the shorts. It moves when you walk, which reads as more character-accurate than a static prop.
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11 Werewolf Shoe CoversLoona stands with a digitigrade stance, meaning her feet have wolf proportions rather than human ones. The shoe covers create the paw-foot silhouette that takes this from goth costume to hellhound costume. Make sure they are secure before walking around for the night.
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How to Style the Loona Halloween Costume

The pentagram harness has to sit correctly over the grey crop top with the straps forming the inverted pentagram at the chest. If it is twisted or positioned wrong, it reads as a random accessory rather than a costume detail. The spiked choker and the red contact lenses together are what push the look from goth aesthetic into specifically Loona. Skip the contacts and the costume is a very good goth wolf build; skip the choker and neither of the other two items saves it.

Loona picks up her phone mid-conversation, hangs up on people at the reception desk without warning, and greets Blitzo’s clients with approximately zero enthusiasm. She is not mean exactly. She just has a very accurate sense of which interactions are worth her time. Play that energy at the party and you do not need a single Helluva Boss reference to make it work.

Put the contacts in last and take them out first

Red sclera contacts cover more of the eye than standard costume contacts and can get uncomfortable after a few hours in a warm indoor space. Put them in after everything else is ready, not at the start of getting dressed. If they start to irritate, take them out. The costume works without them after the first round of photos. Never sleep in costume contacts and always follow the care instructions from the seller.

The shoe covers need a test walk before the party

Werewolf shoe covers change your center of gravity and stride length in ways that are not obvious until you try to walk quickly in them. Wear them around the house for twenty minutes before the event. Stairs in particular need a trial run. The covers look great stationary and in photos; the ones that shift mid-step look like a problem that started at home but got worse on arrival.

Loona Group Halloween Costume Ideas

Couples Idea

Loona & Blitzo

Excellent dynamic for fans of the show. Blitzo and Loona’s reluctant father-daughter relationship is one of the most emotionally central parts of Helluva Boss, and the visual contrast between the tall grey hellhound and the small red imp reads immediately to anyone who watches. Outside of the fanbase, this pair needs a brief explanation, but the dynamic is easy to play at a party.

Loona Blitzo

Duo Idea

Loona & Moxxie

Strong duo for Helluva Boss fans, and one of the funnier pairings in the show to play at a party. Loona and Moxxie’s relationship is essentially one long mutual irritation punctuated by occasional teamwork. The dynamic is immediately recognizable and requires no setup once both costumes are in the room together.

Loona Moxxie

Group Idea: Helluva Boss I.M.P Crew

Loona, Blitzo, Moxxie, Millie, Striker

Excellent group for a Helluva Boss-dedicated Halloween. Each I.M.P member has a visually distinct design, and a full crew in costume is immediately recognizable to the fanbase. Striker is the hardest build in the lineup. Outside of the Helluva Boss community, this group requires some explanation, but the visual variety across the characters is strong enough to read as a coherent theme even to people who do not know the show.

Loona Blitzo Moxxie Millie Striker

Group Idea: Iconic Animated Supernatural and Dark Characters

Loona, Marceline, Raven, Sam Manson, Maleficent

Strong group with broad visual variety. Marceline, Raven, and Sam Manson are recognizable across different animation fandoms, and Maleficent carries recognition beyond animation entirely. Loona is the most niche in the lineup but fits the dark aesthetic of the group without needing explanation. Each character has a distinct enough silhouette that the group reads as a deliberate theme.

Loona Marceline Raven Sam Manson Maleficent

Loona group Halloween costume ideas showing Helluva Boss I.M.P crew and iconic animated dark characters group concepts

Loona Halloween Costume DIY Tips

What to Buy and What You Can Skip

Eleven items sounds like a lot. Four of them are the costume. The rest are details that add accuracy but none of them individually break the build if you skip them.

Grey crop top: buy it. The grey is specific and most people do not have one in the right shade.
Pentagram harness: buy it. No easy substitute for this detail.
Spiked choker: buy it. The single most recognizable accessory on the character.
Dark grey wig: buy it unless your hair is already long and silver-grey.
Grey wolf ears: buy. Color matters here, not just shape.
Black furry tail: attach with a safety pin to the waistband. Easy.
Grey arm and leg warmers: check if you own anything close. Any grey fabric sleeve works in a pinch.
Red contacts: optional but significant. Buy from a reputable source only.
Werewolf shoe covers: optional but they take the costume from goth to hellhound. Trial walk required.

Playing Loona at the Party

Loona’s entire social strategy is being on her phone and looking like she has better things to do. This is paradoxically one of the easier characters to play at a party because it requires minimal effort.

Keep your phone out. Loona is always on her phone. This is not a costume choice, it is a character requirement.
“Oh, sit on a dick, Moxxie” works as a response to almost any minor inconvenience. Adjust the target name as needed.
When someone gives you something, ask if it is a cure for syphilis. Pause. Let them process that.
If someone asks why you look tired: “I’m hungover from this morning.” It is technically morning somewhere.
Loona has exactly one soft spot and it is for Blitzo. If someone is dressed as Blitzo, be slightly nicer to them than everyone else, begrudgingly.

Loona Halloween Costume: FAQ

How do I dress like Loona for Halloween 2026?

You need a grey crop top with a pentagram body harness over it, scalloped black shorts, a dark grey wavy ponytail wig, grey fox ears, a spiked goth collar choker, grey arm and leg warmers, red contact lenses, a black furry tail, and werewolf shoe covers. The grey crop top with the pentagram harness and the spiked choker are the two essential pieces. Without both, the costume reads as generic goth rather than specifically Loona.

Is the Loona costume still a good choice for Halloween 2026?

It is a niche but solid choice within its community. Helluva Boss has a passionate following and Loona is one of the show’s most recognizable characters, so at any gathering with animation fans or Helluva Boss viewers the costume lands immediately. Outside of that fanbase, recognition is limited, but the costume reads well as a goth hellhound aesthetic even to people who have never heard of the show.

What are Loona’s most famous quotes?

Three lines cover the full range of her personality: “Oh, sit on a dick, Moxxie” (her default coworker setting), “Is it a cure for Syphilis?” (her response when Blitzo gives her a gift), and “I’m hungover from this morning, dumbass!” (her explanation for drinking on a work night, delivered to Millie). The second one is the best party line because it works as a response to almost anything anyone hands you.

Who is Loona in Helluva Boss?

She is the receptionist at I.M.P, a murder-for-hire business operating out of Hell, and the adoptive daughter of the company’s founder Blitzo. She is 22, a hellhound, and spends most of her working hours on her phone. She is also one of the most capable members of the team when she decides to actually participate, which she does on a schedule she sets herself.

Do I need the red contact lenses for the Loona costume?

They are optional but they complete the hellhound look in a way no other item does. Loona has bright red sclera, which is one of the most distinctive things about the character’s face. Without the contacts the costume reads as a goth wolf girl; with them, it reads as specifically Loona. Always buy contacts from a reputable retailer and never share them.

What is the pentagram harness for in the Loona costume?

It replicates the crisscross spaghetti straps on Loona’s crop top, which form an inverted pentagram at the neckline. Worn over the grey crop top, it creates the correct neckline pattern without needing a custom-made top. It is one of the most character-specific details in the design and what separates this from a generic goth costume.

What are the werewolf shoe covers for?

Loona has a digitigrade stance in the show, meaning her feet have wolf proportions rather than human ones. The shoe covers replicate this paw-foot silhouette. They are not essential to the costume but they take the build from goth wolf to hellhound. Do a test walk at home before the party. Stairs in particular need a practice run.

Loona Halloween Costume Guide