Demons are the most forgiving Halloween theme I know, because the character has no fixed costume. Almost anything red or black becomes a demon the second horns go on, so you can dress it up into a velvet jumpsuit or down into jeans and a graphic tee. I always start from an outfit you'd happily wear anyway and add the theme in light pieces: a horn headband, a tail that unclips, a sharp line of liner. Shoes and layers matter more than people expect if you'll be walking, dancing or standing outside. Below are thirty outfits, from casual and office-friendly to glam, menswear, androgynous, couple and group versions, with the hair, makeup, bags and shoes worked out for each one.
Sewing a Tail That Won't Drag or Fall Off
Nearly every outfit below uses a removable tail, and it's the piece most people buy as an afterthought and lose by ten o'clock. A good one takes an evening to sew from scraps, and it behaves far better than the stiff ones sold in packets.
- Cut two long, tapering strips of stretch fabric or felt, sew them into a tube right sides together and turn it out. Felt doesn't fray, which makes it the easiest choice if you don't own a sewing machine.
- Stuff it lightly with polyester fiberfill. A tail packed firm gets heavy and drags your waistband down at the back.
- For a curl, slide a couple of twisted pipe cleaners inside and bend them into shape. Fold the wire ends over and wrap them in tape so they can't poke through the fabric.
- Make the arrow tip from two layers of felt with a piece of stiff interfacing between them, then stitch it to the end of the tube.
- Sew a loop at the top and hang it from a belt, a ribbon tied at your waist or a belt loop. Safety pins leave holes in satin and pull runs in knits.
Length matters more than shape. I stop a tail just above the back of the knee, so it doesn't trail on stairs, get stepped on in a crowd or end up under you when you sit. Sitting is the other habit to learn: flip it to the side before you sit down and it lasts the whole party.
1. Classic Red Demon Outfit With Mini Dress
The red mini is the quickest read of the lot. Pick one with long sleeves or a higher neckline so the short hem feels balanced, and hang a detachable red tail from a slim black belt instead of pinning it to the dress. Horn headbands vary a lot in grip, so wear yours for ten minutes at home; the cheap ones pinch behind the ears. A black wing and red lipstick are enough face. Sheer black tights, comfortable ankle boots and a cropped black jacket for the walk over keep it party-ready without hiding the red.
2. Black Demon Outfit With Leather Jacket
Faux leather over a deep red top makes the darkest easy casual demon here. Straight-leg black jeans, a narrow red belt, small matte horns and a subtle clip-on tail are all it takes. For hair, I'd reach for red color spray on your own hair before a wig, because a short wig gets hot under a jacket collar. Smudged charcoal liner and burgundy lipstick suit the leather. Black combat boots with red socks peeking over the top and a red crossbody bag put flashes of color at both ends of the outfit. Faux leather doesn't breathe, so wear the jacket open once you're indoors.
3. Cute Pink Demon Outfit With Pleated Skirt
Pink proves a demon doesn't have to be dark. A pale pink fitted sweater with a raspberry pleated skirt and opaque white tights makes the base, and small glittery horns with a heart-tipped tail tell people what you are. I love space buns with this look, and they help the horns too, since a headband sits snugly in front of two buns instead of sliding back. Rosy blush, gloss and a neat flick of magenta liner keep the face bright. White platform sneakers handle the walking, pink ankle boots are the dressier swap, and a cropped fuzzy jacket covers you if the party spills outside.
4. Glam Demon Outfit With Velvet Jumpsuit
A velvet jumpsuit is the demon for an evening invitation. Burgundy with a defined waist and wide legs, belted in slim metal, reads grown-up, and a polished black or gold horn headband looks far more deliberate than oversized costume horns. One practical note on jumpsuits: every bathroom trip means taking the whole thing down, so a long coat you can drop at the door is easier than a jacket plus cape. Bronze shadow, sharp liner and deep red lips suit the velvet. Pointed pumps lengthen the leg, block-heel ankle boots keep you steady, and a small gold clutch finishes it.
5. Gothic Demon Outfit With Maxi Dress
A long black maxi brings drama without anything revealing or tight. Lace or mesh panels need a lining, and I hold a dress up to the light in the fitting room to see what shows through. A dark red slip underneath lets color flash through the panels, while curved black horns, a velvet choker and wing-shaped earrings carry the gothic side. Long straight hair with a center part suits it. Plum shadow and a muted berry lip do more here than heavy face paint. Lace-up ankle boots are kinder than tall heels under a long hem, and a floor-length coat with a structured red bag breaks up all the black.
6. Casual Demon Outfit With Graphic Tee
This is the closet build. A red graphic T-shirt tucked into high-rise black jeans under an oversized black denim jacket is the base, and a small fabric tail looped through the back belt loop is the smartest attachment on the list, because it simply can't fall off. Foam horns on a padded headband keep it comfortable. A crisp red liner wing and tinted balm are all the makeup it needs. A belt bag keeps your hands free, and black canvas sneakers with red laces mean you can walk all night. It's my default for a neighborhood party or a plan that came together this afternoon.
7. Last-Minute Demon Outfit With Red Basics
When time is short, a red long-sleeve top with black trousers or leggings becomes a demon once a black blazer or cardigan goes over it, which makes the basics look chosen. Horns can be cut from red craft foam and glued onto a plain headband in about half an hour; trim the edges smooth so they don't scratch your forehead. A red ribbon tied at the waist carries a soft tail without poking holes in your clothes. A high ponytail with red clips at the crown, black liner, mascara and red lipstick take minutes. Cushioned flats or sneakers and a tote you already own round it out for almost no money.
8. Plus-Size Demon Outfit With Wrap Dress
A wrap dress lets you set the fit yourself, which is why I reach for it for plus-size demons. Choose a red midi with comfortable sleeves and real room across the shoulders, because that's where wrap dresses pull when you reach for a drink. A wide black waist belt carries the tail better than the dress fabric can, and medium curved horns balance the shape. Voluminous curls or a braided updo give the headband something to grip. Warm red shadow, black liner and berry lipstick pair with bold gold earrings and a black top-handle bag. Block-heel boots or wide-fit loafers keep you steady, and a cropped faux-leather jacket adds warmth without covering the wrap line.
9. Men’s Red Demon Outfit With Suit
A tailored red suit is the sharpest demon a man can wear, and it barely needs props. Swap the formal shirt for a fitted black crewneck, add a black belt and streamlined black horns, and keep the tail short and detachable so it doesn't tangle with the jacket vent. Red styling wax on the ends of slicked-back hair looks deliberate where spray can look patchy. A little black liner at the outer corners and light contour on the cheekbones read well in photos without looking like makeup. A black pocket square, a dark watch and polished black shoes keep it clean. For a looser version, wear the red blazer with black jeans.
10. Men’s Black Demon Outfit With Moto Jacket
Under a black moto jacket, a dark red mock-neck and slim black jeans make a rugged demon that most men will actually agree to wear. Small swept-back horns sit close to short hair and don't catch on doorframes. Temporary red wax at the front or sides gives a stronger change if he wants one. Smudged black liner, defined brows and a touch of red shadow at the temples look stylized rather than gory. A soft clip-on tail, a red messenger bag and black lace-up boots with red laces are the rest. The jacket will come off indoors, so make sure the top underneath carries the color on its own.
11. Androgynous Demon Outfit With Wide-Leg Pants
Wide-leg trousers are my starting point for an androgynous demon, since they give a strong line at any height. Go for black at a high or mid rise with a tucked red mock-neck, then a cropped blazer or a structured vest depending on the temperature. Medium smooth horns and a thin tail sit well with tailoring, while big curly horns fight it. A clean center part or slicked-back hair suits the shape, and graphic red liner drawn above a black line is the detail I'd keep. Hem the trousers to the exact shoes you'll wear, platform loafers or chunky lace-ups, so the hems never touch the ground.
12. Demon Outfit With Red Corset Top
A red corset-style top worn over a fitted black mock-neck gives you the corset shape with full coverage. High-waisted black trousers or a long A-line skirt keep the proportions balanced. Fit is the whole game here. If you can't take a full breath sitting down, it's too tight for a party, and a laced back should close with a small gap rather than edge to edge. Small red horns, a slim removable tail and a cropped blazer finish the demon, with black liner flicked red at the outer corners. Simple hoops, optional wrist-length gloves and block-heel ankle boots keep the rest quiet.
13. Demon Outfit With Sequin Dress
Sequins turn the demon into a party guest. A red or black sequin midi with a proper lining keeps the scratchy texture off your skin, and a solid cropped blazer or faux-fur jacket calms the sparkle. Glossy horns and a metallic tail detail suit all that shine. Wear the hair up or in polished waves so the horns stay visible. If the dress is very reflective, I'd go light on shimmer shadow and let crisp black liner and a satin red lip do the work. A plain envelope clutch beats another embellished piece, and heeled boots give better support than pumps if there's dancing.
14. Fire Demon Outfit With Ombre Set
A red-to-orange outfit suggests flame without a single bulky piece. A gradient blouse with matching wide-leg pants is the cleanest version, though an orange top over a deep red skirt works too. Soft red horns, a flame-shaped hair clip and an orange-red fabric tail carry the theme, and copper color spray on the ends of loose waves continues the gradient into your hair. Blend orange, gold and burgundy shadow around clean black liner. Burgundy ankle boots, a red handbag and a gold cuff tie it off. Keep prints out of it entirely, since a pattern breaks the color progression that makes it read as fire.
15. Ice Demon Outfit With Blue Suit
An icy blue suit is the demon for someone who never wears red. A pale blue blazer and trousers go over a silver or white fitted top, with translucent blue horns, crystal hair pins and a silver tail for the frost. Pale suits crease at the elbows and lap after an hour of sitting, so I'd pick one with a little stretch and hang it in a steamy bathroom before you leave. Sleek straight hair or a long silver-blue wig, silver shadow, navy liner and cool pink blush suit the palette. White ankle boots or silver loafers and a metallic mini bag keep it bright from top to bottom.
16. Purple Demon Outfit With Satin Dress
Deep purple satin looks rich and a little mysterious. A midi with a comfortable neckline under a fitted black cardigan, black-to-purple gradient horns, a narrow velvet belt and a matching tail make up the outfit. Satin shows water marks badly, so hold your drink away from your lap and blot spills instead of rubbing. Plum and lavender shadow with defined black liner and mauve lipstick match the fabric. Slippery satin stays put with discreet fashion tape and a smooth slip underneath, and black block heels with a beaded clutch are all the accessories it can carry.
17. White Demon Outfit With Monochrome Layers
All white is the demon nobody expects. A white mock-neck top with tailored wide-leg pants and a cropped cream jacket make the base, and pearly horns, a white fabric tail and silver wing earrings show the theme. Don't try to match every white exactly, because it's nearly impossible; a mix of cream and bright white looks intended. A sleek ponytail or a blunt white wig, pale silver shadow, white graphic liner and a cool neutral lip suit it. Wear clean white boots or platform sneakers, and keep a stain pen in the small silver bag, since red wine and pizza both find white.
18. Gold Demon Outfit With Metallic Jumpsuit
A gold jumpsuit makes a demon with very little else. Choose a soft, gently reflective fabric over stiff costume lamé, which crackles and creases, and belt the waist in black. Matte black horns tipped with gold give contrast against the shine, along with a light tail and geometric gold earrings. A smooth braided ponytail keeps hair off the collar, and bronze shadow, black liner and a neutral lip keep the face warm. Because the fabric does the shouting, keep the horns modest and carry a small black bag. Platform sandals suit a dance floor; ankle boots suit a cold night.
19. Silver Demon Outfit With Futuristic Set
A silver top and trouser set gives you the futuristic demon. Look for a soft metallic knit that bends at the knee, because rigid foil-finish fabric cracks along the creases and restricts every step. A black fitted shirt underneath adds contrast and warmth. Streamlined silver horns, a matching tail belt and angular sunglasses push the modern look, though I'd take the glasses off indoors so you can see the steps. Hair slicked back or braided close to the head, graphite shadow, sharp liner and a reflective highlight finish the face. Silver sneakers or black platform boots and a small black backpack keep it practical.
20. Green Demon Outfit With Tailored Separates
Emerald is the color I suggest to anyone tired of red demons. An emerald blouse or knit with black tailored trousers is the base, and a matching green blazer turns it into a set. Curved black horns, a green tail and dark metallic earrings communicate the theme. Black horns against green read much sharper than green horns, which disappear into the outfit. A high bun, forest green shadow around crisp liner, a berry lip and a green pocket square or scarf for continuity are enough. Black loafers or ankle boots with a structured bag finish it, and the light layers stay cool at a warm indoor party.
21. Demon Office Outfit With Red Blazer
For an office Halloween, build the demon around a red blazer over black separates, with a black mock-neck and ankle-length trousers or a knee-length skirt. The trick is that every themed piece comes off in a second. Tiny clip-on horns or a slim headband live in your bag until the party starts, and a narrow red belt with a short fabric tail goes on at the same moment. Neat hair, subtle winged liner, muted red lipstick and a touch of blush pass any meeting. A structured tote and black loafers or low block heels keep the rest of the day professional.
22. Preppy Demon Outfit With Plaid Skirt
A red-and-black plaid skirt gives you a preppy demon that suits school parties and daytime events. Pair a knee-length pleated skirt with a fitted black sweater, a red varsity-style cardigan and opaque tights. Small red horns, a neat bow tie and a detachable tail add the fantasy without bulk. Two low ponytails or a bob work best with the horns, since a high ponytail can push the band forward. Thin black liner, rosy blush and a red lip tint stay fresh all day. A small black backpack and chunky loafers with cushioned socks handle a day on your feet.
23. Festival Demon Outfit With Cargo Pants
Cargo pants are the demon you can survive a crowd in. Black or charcoal cargos with a fitted red tank over a light mesh or long-sleeve top, plus a cropped utility jacket for when the sun goes down. Horns get knocked in crowds, so I glue foam horns to a sturdy wide headband and keep the tail short enough that nobody steps on it. Braids or space buns hold up for hours. Graphic red liner, face gems and tinted balm need fewer touch-ups than lipstick. Wear a secure crossbody, supportive combat boots or high-tops, and some reflective trim or silver jewelry so you're visible after dark.
24. Demon Party Outfit With Feather-Trim Pants
Feather-trimmed trousers with a fitted red blouse make a dramatic party demon. The trim should be stitched on rather than glued, and short enough to clear the floor; long feather hems trip people and shed across every room you walk through. Glossy black horns, a slim red tail and sculptural earrings carry the theme, with hair in a sleek bun so the neckline shows. Red shimmer shadow, a sharp liner and burgundy lipstick suit the drama. A clutch with a wrist strap is much harder to lose on a dance floor. Pumps suit a formal party, platform loafers a long one, and a cropped red blazer should stop well above the feathers.
25. Demon Outfit With Tulle Skirt
A layered red tulle skirt gives the demon movement. Choose a midi with an opaque lining and pair it with a fitted black sweater or bodysuit-style top for coverage. Tulle flattens in a car seat, so give it a firm shake once you arrive and it springs back. A black ribbon belt carries a light tail at the back, and small velvet horns with star earrings keep the fantasy soft. Loose curls or two neat buns, black liner with red mascara accents and rosy lipstick suit the mood. A structured mini bag contrasts with the soft skirt, and black ankle boots or ballet flats show neatly beneath it.
26. Demon Outfit With Long Red Coat
A long red coat turns black basics into a demon that commands a room. A black mock-neck sweater and straight-leg trousers go underneath, with the coat over everything. Matte black horns, a subtle tail belt and bold black earrings carry the theme. The coat is the costume here, so it has to stay on all night: check you can sit without the hem pooling on the floor, and keep that hem off the ground outdoors. Slicked-back hair or red streaks around the face, smoky liner and deep berry lipstick suit it. Knee-high black boots, thin gloves for a cold night and a structured top-handle bag finish the look.
27. Demon Outfit With Knit Dress
A ribbed knit dress is the coziest demon here. Choose red or burgundy at midi length with long sleeves and enough stretch to move. Horns covered in matching yarn look made rather than bought, and they're easy: wrap the yarn tightly from tip to base, adding a dot of glue every few turns so it doesn't unwind. A contrasting belt carries a short tail. A low bun fits comfortably under the headband, and brown shadow, crisp liner and a warm red lip suit the knit. Opaque tights and block-heel ankle boots keep you warm, with a trench or oversized cardigan for time outside.
28. Demon Outfit With Red Denim
Red denim reads as a modern demon instead of a costume. A matching red jacket and jeans make a bold set, while the jacket over black jeans is easier to wear. New red denim often rubs dye onto light sneakers and car seats on a damp night, so wash it once before the party. Add a fitted black tee, a simple horn headband and a tail at the waistband. Natural hair with red clips, graphic black liner and a little red shadow at the outer corners keep it relaxed. White sneakers give contrast, rolled sleeves keep the double denim casual, and a belt bag frees your hands.
29. Couple Demon Outfit In Red And Black
The cleanest couple demon splits the colors, with one of you in red and the other in black. The red side might be a blazer, fitted top, trousers and black ankle boots; the black side a moto jacket, mock-neck, jeans and red-laced boots. What ties you together is the shared pieces, so buy matching curved horns and short tails at the same time, because two different horn shapes look like two separate costumes. Coordinated red streaks make a fun shared detail. One of you wears red graphic liner, the other smudged black, and matching metal jewelry pulls it together. Make sure both outfits have a secure pocket or crossbody bag.
30. Group Demon Outfit With Color Themes
A group demon is easy to organize once each person takes a different color: a red jumpsuit, a purple dress, a green suit, a silver set. What keeps it a group is that the shared pieces stay identical, so everyone wears the same horn shape, the same tail length and black shoes. I'd have one person make or buy every set of horns so they match. Makeup follows one simple formula, black winged liner plus shadow in each person's color, and hair clips or streaks match each outfit. Pockets or crossbody bags keep everyone's phones handy, and shoes can be whatever each person needs to walk in.
Red Hair Color for One Night Only
A lot of these looks add red streaks, copper ends or colored wax, and temporary hair color is wonderful for a night out as long as you know how it behaves. Spray color sits on top of the hair rather than dyeing it, which is why it washes out, and also why it rubs off on collars, hats, pillows and anyone who leans on your shoulder.
- Spray onto dry, already-styled hair from about arm's length away, with an old towel around your shoulders. Light passes build better color than one heavy blast.
- Shield your face and hairline with your hand or a piece of card, and keep the spray off light-colored clothes until it has dried.
- A mist of hairspray over the top cuts down on transfer, though nothing stops it completely. If rain is forecast, keep a hood handy, because wet spray color runs.
- Red spray barely shows on very dark hair. Color wax or a clip-in streak gives a much stronger result there.
- Synthetic clip-ins frizz or melt under hot tools, so curl them on a low setting or buy them already curled.
Most temporary color comes out with one or two shampoos. Bleached, gray or very pale blonde hair is porous, though, and red and pink can leave a faint tint for several washes, so test a strand from underneath a few days before Halloween.
The Outfit Comes First, the Horns Last
Every demon above starts as clothes you could wear on an ordinary day, and the fantasy comes from a few light additions: horns, a tail that unclips, strong color and graphic liner. Red and black are reliable, but pink, ice blue, emerald, white, gold and silver all stand out in a room full of red devils. Before you settle on shoes or a coat, think about the walk there, the weather and any dress code. Then move around in the full outfit at home. If every piece stays put while you sit, reach and dance, it'll last the night, from the gothic maxi to the group in matching horns.
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