If one of you is blonde and the other brunette, half the costume is already done. Hair is the first thing people read on a character, so I start these pairs by casting from the hair you already have and only then hunting for clothes. The thirty pairs here come from films, TV friendships, celebrity looks, cartoons and a few made-up themes. For each one I've noted clothing, hair, makeup, props and shoes, so you're planning a whole look instead of a pile of random pieces. Most start in your closet or a thrift shop, and every one can be adjusted for skirt length, sleeves, heel height and the weather on the night.

Casting the Pair From the Hair You Already Have
When two friends ask me which pair to pick, I look at their hair before their wardrobes. A character's hair colour, length and texture are read from much farther away than any outfit detail, so matching your real hair to the role saves you a wig, a hot night under one and a fair bit of money.
- Length matters as much as colour. Rachel's blowout and Hermione's volume need shoulder length or more; a short brunette bob suits Velma-type roles better than either.
- Texture is easy to fake for one night. Straight hair takes rollers or a curling iron well; curly hair can be blown smooth but tends to revert in damp weather, so pick a role that forgives a little frizz if rain is forecast.
- Shade within blonde or brunette rarely matters. Nobody at a party checks whether Elle is ash or golden. They check that she's blonde and in pink.
Once the hair is settled, the clothes are mostly a colour story. Every pair below has one character in a light or warm palette and one in a darker or cooler one, and that contrast is what tells people you're a set.
1. Serena And Blair Gossip Girl Costume

Upper East Side school uniforms make this one easy to source. Serena wears a white button-down, a loosely knotted striped tie, a plaid mini skirt, knee socks and loafers, with loose blonde waves, bronzed makeup and a structured shoulder bag. Blair's version is sharper: a fitted blouse, plaid skirt, coloured tights, ballet flats and the padded headband, with smooth brown curls, rosy lipstick and precise liner. The headband is Blair. If you can only find a flat one, I wrap a thin strip of quilt batting around it under velvet ribbon and hot-glue the ends underneath. Matching blazers pull the pair together and give you a layer for a cold evening; flip phones or invitations make light props.
2. Glinda And Elphaba Wicked Costume

A pink good witch and a green one let two friends dress in completely opposite moods. Glinda starts with a pale pink tulle dress, a glittering crown, a star wand, sheer tights and silver flats, with soft curls or a half-up style, pearly shadow and pink blush. Elphaba wears a long black dress with structured shoulders, a sweeping cape, a pointed hat and black boots, her dark hair in a long braid or textured waves. Washable green face paint goes evenly over the face and neck, with dark liner. I always tell the Elphaba to paint the backs of her hands as well; bare pale hands next to a green face look unfinished. Set the green with powder before any hugging near that pink tulle.
3. Princess Peach And Daisy Costume

Two video-game princesses who happen to split neatly by hair colour. Peach wears a full pink dress with puff sleeves, white gloves, a blue pendant and a gold crown with faux gems, with big curled ends, soft pink makeup and a glossy lip. Daisy takes a yellow or orange dress, a green pendant, a matching crown, white gloves and orange-accented shoes, with a bouncy shoulder-length flip. Each can carry a plush mushroom or a light racing flag. The puff sleeves sag on cheap dresses, and a little tulle stuffed inside each one fixes it in a minute. Floor-length skirts hide sneakers well, so wear them if there's walking or dancing ahead.
4. Lizzie McGuire And Isabella Costume

This is the concert finale from the Lizzie McGuire film, and it's mostly about shimmer. Lizzie wears a lavender crop top over a sparkly tank, flared purple pants, metallic platform sneakers and a headset microphone, with straight blonde hair, tiny front braids, lavender shadow and face gems. Isabella mirrors the shape in emerald or aqua with a fitted embellished top, flowing trousers and silver shoes, sleek straight hair and green shimmer. Matching cuffs and light handheld mics connect them. I make the tiny braids the night before and secure them with clear elastics; they're the giveaway detail and they slip out of freshly washed hair. Swap crop tops for fitted full-length tanks if you want more coverage.
5. Regina And Gretchen Mean Girls Costume

Pink and polish carry these two, so no crafting is needed. Regina wears a pink cardigan over a white tank, a black mini skirt, knee-high boots and a small shoulder bag, with straight glossy hair, neutral eyes and pink gloss. Gretchen takes a fitted pink sweater, a plaid skirt, sheer tights and heeled loafers, with big brown curls, warm blush and a berry lip. Pink notebooks or a mock cafeteria tray work as props. Two shades of pink right next to each other can clash under party lights, so I hold the cardigan and sweater together in daylight before committing. Keep it preppy and neat rather than copying the film's more revealing outfits, and add wool coats if it's cold.
6. Phoebe And Rachel Friends Costume

A bohemian friend and a classic 1990s one, which suits two people with very different closets. Phoebe wears a floral maxi dress, a cropped cardigan, pendant necklaces, patterned tights and chunky ankle boots, with long, lightly waved hair, natural makeup and a soft berry lip; a light guitar prop or stuffed cat adds a wink. Rachel wears a fitted black turtleneck, a plaid mini, sheer tights and knee-high boots, with a smooth layered blowout and brown liner. Vintage coffee mugs or matching cafe aprons tie them together. The layered blowout is what makes Rachel read, and it drops in a damp evening, so I'd set it with rollers and a firm-hold spray rather than a flat iron alone.
7. Tinker Bell And Wendy Costume

A sparkly fairy next to a storybook nightdress, and a good pair for a family party. Tinker Bell wears a green fit-and-flare dress, sheer wings, pale tights and green flats with white pom-poms, her hair in a high bun with soft face-framing pieces, luminous makeup and a tiny wand. Wendy wears a modest light blue maxi dress or nightgown with puff sleeves, a satin waist ribbon and black Mary Janes, with low braids tied in blue bows, rosy cheeks and a small storybook. Pom-poms glued to shoe toes pop off on the first kerb, so I sew them through a small felt square that I then glue to the shoe. Flexible wings and hemmed skirts keep both friends moving safely in a crowd.
8. Sharpay And Gabriella High School Musical Costume

Two theatre-kid personalities, one loud and one sweet. Sharpay goes bold with a rhinestone-trimmed pink top and skirt, a cropped faux-fur jacket, metallic boots and a sparkly microphone, with polished curls, pink shadow, glossy lips and small face gems. Gabriella wears a red satin dress, or a red top and skirt, with simple silver jewellery and comfortable heels, smooth waves and soft neutral makeup. Printed audition sheets or paper music notes are easy props. Faux fur sheds onto everything, including your friend's red satin, so I give the jacket a good shake and a lint roller outside before leaving. Stretchy fabrics and secure hems let you dance all night.
9. Sam And Carly iCarly Costume

Everyday clothes in loud colours, so this is the pair I'd suggest if you're short on time. Sam wears a graphic tee, a zip-up hoodie, dark skinny jeans and worn sneakers, with long straight hair roughed up a little, minimal makeup and a remote control or snack bag. Carly wears a layered patterned top, a bright cardigan, a denim skirt or jeans and ankle boots, with side-parted curls, fresh blush and neutral gloss. A handmade web-show sign or toy video camera makes the reference clear. That sign does more explaining than any piece of clothing, so I make it big, on foam board, and letter it with a thick marker. Mixed patterns and bold 2000s colours carry the rest.
10. Max And Caroline 2 Broke Girls Costume

Matching diner uniforms make Max and Caroline the comfiest pair on the list. You both wear mustard-yellow short-sleeve dresses with red piping, white aprons and red or brown sneakers. The brunette plays Max, with long dark waves, smudged liner, a playful berry lip and a cupcake tray made from light cardboard. The blonde plays Caroline, with smooth golden waves, polished neutral makeup, pearl earrings and an order pad. Red name tags separate you. If you can't find the dresses, a mustard dress with red bias tape stitched along the collar and sleeves gets the piping detail convincingly. Shorts underneath and supportive shoes make this a good office-party pick, since it's covered and easy to move in.
11. Betty And Veronica Riverdale Costume

Preppy school clothes give these two a tidy, matched look. Betty wears a pale pink sweater over a white collar, an A-line skirt, knee socks and white sneakers, with a high ponytail, peach blush and light pink lipstick. Veronica takes a fitted black dress or a dark plaid skirt with a collared top, a pearl necklace and sleek ankle boots, with glossy vintage waves, defined brows and deep berry lipstick. Matching notebooks, milkshake cups or reporter pads make light props. Betty's ponytail should sit high and tight, and I wrap a strand of hair around the elastic and pin it so the band disappears. Coordinated varsity jackets add warmth and link the pair without exact copies.
12. Buffy And Faith Vampire Slayer Costume

A 1990s action pair, and no gore needed. Buffy wears a fitted red leather-look jacket, a black tank, dark pants and sturdy ankle boots, with loose waves and natural makeup with softly defined eyes. Faith goes darker in a black jacket, a burgundy top, straight-leg pants and combat boots, with textured waves, smoky liner and muted lipstick. I'd skip weapon props entirely and carry faux library books, flashlights or homemade investigator badges. Faux leather jackets get hot fast indoors, so check that the sleeves come off easily or that there's somewhere to hang them. The brighter red on one and the deeper shades on the other keep the characters distinct.
13. Elle And Vivian Legally Blonde Costume

Elle's pink and Vivian's navy make a smart pair for friends with opposite tastes in clothes. Elle wears a bright pink blazer, matching skirt, a silky blouse, pink pumps and a structured handbag, with a smooth blowout, rosy makeup, glossy lips and a small plush dog in a carrier. Vivian goes for a dark navy blazer, a crisp button-down, a plaid skirt or tailored trousers and classic loafers, with sleek hair, a simple headband and a neutral lip. Law textbooks or mock folders make good props for both. A head-to-toe pink suit is surprisingly hard to thrift, and I've had better luck pairing a pink blazer with any pink skirt in the same family of shade. This one is polished enough for an office party.
14. Cher And Dionne Clueless Costume

Matching plaid suits make this the most coordinated pair here. Cher wears a yellow plaid blazer and pleated skirt, a white sweater vest, knee socks and white Mary Janes, with straight loose hair, peach blush and glossy nude lipstick. Dionne takes a black-and-white plaid jacket and skirt, a red cardigan, over-the-knee socks and black platforms, with braids or long waves under a dramatic black hat, defined liner and red lipstick. Small backpacks and big old-style phones make great props. I hem the skirt to where you can sit comfortably first and worry about screen accuracy second. Fitted shorts underneath, or plaid trousers, keep you warm and covered.
15. Jenna And Lucy 13 Going On 30 Costume

A colourful early-2000s pair that dresses up or down easily. Jenna wears a bright multicolour striped mini dress, a butterfly necklace, a small shoulder bag and strappy heels or metallic flats, with a bouncy updo, loose pieces, bright blue shadow and glossy lips. Lucy takes a sharp black dress, a cropped jacket, a patterned scarf and pointed pumps, with a sleek bun or straight shoulder-length hair, precise liner and neutral lipstick. Fashion magazines or mock presentation folders work as props. The striped dress is hard to find; a striped top tucked into a matching skirt gives the same effect, and I cinch them with a thin belt so the stripes read as one piece.
16. Romy And Michele Costume

Romy and Michele are all about shiny, coordinated 1990s party dresses. Romy wears a short blue dress with feather trim, silver platform sandals and a small rhinestone bag, her hair in a high curled ponytail with frosted shadow and glossy pink lipstick. Michele wears a shiny pink mini, matching platforms and sparkly drop earrings, with a sleek updo, face-framing tendrils, lavender eyes and rosy gloss. Handmade reunion name tags or a notebook labelled with a silly invention make easy props. Feather trim moults all evening, and a light spray of hairspray on the feathers before you go cuts down on it. Add nude tights and cropped jackets for warmth, and aim for dresses that match in shine and shape, not exact copies.
17. Carrie And Charlotte Sex And The City Costume

This is the pair for friends who'd rather look fashionable than costumed. Carrie wears a fitted tank, a full tulle midi skirt, a statement necklace and colourful heels, with loose, tousled curls, luminous makeup, a rosy lip, a small baguette bag and a folded newspaper. Charlotte stays classic in a tailored fit-and-flare dress, pearl earrings, a structured purse and pumps or ballet flats, with a smooth blowout and polished neutral makeup. A full tulle skirt hides a lot, so I tell people to sit down in it before buying; some flip up at the front. One eclectic, one neat, and a cropped cardigan if needed.
18. Meredith And Cristina Grey’s Anatomy Costume

Scrubs make this the least fussy pair here. You both wear blue scrubs over fitted long-sleeve shirts, supportive sneakers and simple hospital-style ID badges. Meredith keeps loose natural waves, fresh minimal makeup and a clipboard with a pretend patient chart; Cristina pulls dark hair into a low ponytail or bun, with understated makeup and a second clipboard or a costume stethoscope. Zip-up jackets in matching colours help outdoors. I'd keep the badges obviously fictional and leave realistic medical gear at home, because it can confuse people in public. Name badges, pens and paper coffee cups are what make the pair, and scrubs wash and reuse well.
19. Quinn And Rachel Glee Costume

A cheer uniform beside a theatre-kid sweater gives you two clear outlines. Quinn wears a red-and-white cheer dress, white ankle socks, clean sneakers and light pom-poms, with a high ponytail and red bow, fresh makeup and pink gloss. Rachel wears a patterned sweater, a pleated skirt, knee socks, loafers and a small star necklace, with straight hair in a neat side part and a berry lip, plus sheet music or a toy microphone. A matching school cardigan can connect the two. Animal-print or novelty sweaters in Rachel's style turn up often at thrift shops, so I'd start there. Longer skirts or fitted shorts underneath keep both secure for dancing and photos.
20. Brittany And Santana Glee Costume

Identical cheer uniforms give you the simplest blonde-and-brunette setup on the list. You both wear matching red, white and black cheer uniforms with white sneakers, ankle socks and pom-poms. Brittany's hair goes up in a high ponytail with soft curled ends, with light makeup, pink blush and clear gloss. Santana's ponytail is sleek, with sharp winged liner and a deeper pink lip. Personalised megaphones or varsity jackets help tell you apart. If the skirts are too short for comfort, wear athletic shorts or swap to cheer-style skater dresses. I'd buy both uniforms from the same seller, because two shades of red standing side by side look accidental.
21. Brooke And Peyton One Tree Hill Costume

Glam and grunge from early-2000s TV, and both built from thrift basics. Brooke wears a fitted red top, a denim mini, a cropped jacket, heeled boots and a shoulder bag, with polished curls, bronzed makeup and glossy berry lipstick. Peyton is relaxed in a band-style graphic tee, distressed jeans, layered necklaces and black sneakers or combat boots, with loose natural curls and smudged liner. A sketchbook for Peyton and a fashion notebook for Brooke sharpen the reference. Smudged liner looks deliberate when you start sharp and blur it with a cotton bud, rather than drawing it messy from the start. Two personalities, clearly linked.
22. Cassie And Maddy Euphoria Costume

These two bring sparkle without leaving the costume party-unfriendly. Cassie wears a pale blue ruched midi dress, a cropped cardigan, silver flats and rhinestone hair clips, with soft waves, pastel blue shadow and a few face gems. Maddy takes a deep purple long-sleeve mini, or a top and skirt, with platform ankle boots and a small metallic bag, sleek straight hair, graphic liner and purple shimmer. I'd pick secure necklines and comfortable lengths over exact screen copies. Face gems pop off with sweat, so I stick them with a skin-safe lash glue rather than the backing they come on. Matching crystal earrings and tiny purses tie the pair together.
23. Sailor Moon And Sailor Mars Costume

An anime pair where the hair is half the work. Sailor Moon wears a white fitted top, a blue pleated skirt, a red bow, elbow-length gloves, red boots and a gold tiara, with high twin buns and long ponytails, bright eyes and pink lipstick. Sailor Mars wears the same white top with a purple skirt, red bow, white gloves and red flats or boots, with long, straight, glossy hair, red-toned shadow and a soft lip. A small star wand or sparkly compact suits each. The buns and tails rarely come out of your own hair; I use clip-on ponytails pinned under two small buns. Stretchy fabrics and shorts under the skirts make the uniforms comfortable for hours.
24. Luna And Hermione Harry Potter Costume

School uniforms with sweaters make this a warm pair for a cold night. Luna wears a grey sweater, a white collared shirt, a striped tie, a pleated skirt, patterned tights and black lace-ups, with long soft waves, natural makeup, handmade colourful glasses and a whimsical magazine or plush creature instead of a wand. Hermione wears the same uniform with a dark robe, knee socks and sturdy loafers, with brushed-out volume, understated makeup and an old-looking textbook. Different tie colours or house scarves personalise them. Brushed-out curls go flat in a few hours, so I'd brush them only at the last minute. Thrift-shop schoolwear builds most of it.
25. Cinderella And Belle Princess Costume

Two princesses with two separate colour stories, so they never look like twins. Cinderella wears a pale blue ball gown, sheer gloves, a silver headband, a blue choker and glittering flats, with a smooth bun, pearly shadow and pink lipstick. Belle wears a golden yellow gown with gathered layers, long gloves, gold flats and small rose earrings, with a curled half-up style, warm gold shadow and rosy makeup. Each can carry a storybook or faux flower. Skip hoops; a single layer of stiff tulle under each gown gives fullness and still fits through doors and into a car. Add matching capes if you'll be outdoors or walking between places.
26. Audrey Hepburn And Marilyn Monroe Costume

Old Hollywood glamour, and a pairing that suits a dressier party. The brunette plays Audrey Hepburn in a sleeveless black midi dress, long gloves, a pearl necklace, a jewelled hairpiece and black kitten heels, with a polished high bun, winged liner and soft pink lipstick. The blonde plays Marilyn Monroe in a white fit-and-flare halter dress, pearl studs and comfortable white pumps, with short vintage curls, red lipstick and soft cat-eye liner. A black clutch and a vintage-style compact finish the two. I'd pick a lined dress for the white one, since unlined white fabric shows everything under flash, and stay clear of air vents. Faux-fur wraps keep you both warm.
27. Taylor Swift And Selena Gomez Costume

Two pop-star friends in performance-style outfits, and an easy pair to put together. The blonde wears a sparkly silver mini dress over matching shorts, glittering ankle boots and a stack of friendship bracelets, with soft bangs or loose curls, black winged liner and red lipstick. The brunette takes a jewel-toned sequin jumpsuit, silver heels, statement earrings and a sleek ponytail, with smoky eyes and a glossy neutral lip. Toy microphones and backstage passes printed at home are the props. Unlined sequins scratch the inner arms raw by the end of a night, so I check the lining before anything else. Matching metallic accessories link you while the different shapes keep you distinct.
28. White Swan And Black Swan Costume

A white-and-black ballet pair needs no lines or props to explain it. The blonde wears a white ballet-style bodysuit over opaque tights, a soft layered tutu, feathered shoulder details and white ballet flats, with a smooth bun under a white jewelled headpiece and silver eye makeup. The brunette mirrors it all in black, with a dark tutu, a feathered neckline, black tights and flats, a sleek bun under a black tiara, graphic black-and-silver eyes and berry lipstick. Small ribboned dance bags replace props. White tulle picks up dust and dark marks fast, so I'd keep the white tutu in a garment bag until you arrive. Stretch fabrics and flat shoes keep you comfortable all evening.
29. Sun And Moon Celestial Costume

Sun and moon split naturally between warm blonde and cool brunette colouring. The sun wears a gold pleated dress, a metallic cape, gold ankle boots and a rayed crown cut from light craft foam, with loose waves, golden shadow, face shimmer and tiny star gems. The moon wears a navy or silver dress, a crescent headpiece, a sheer starry cape and silver flats, with sleek or softly waved hair, cool silver eyes and pearly highlights. Matching celestial bags or battery lanterns make props. Craft foam crowns stay stiffer if you warm them with a hair dryer, curve them round a jar and let them cool. Keep crowns compact so they don't knock other guests, and repeat a star on both.
30. Blonde And Brunette Bratz Doll Costume

Fashion-doll looks run on exaggerated proportions and chunky platforms. The blonde wears a pink cropped jacket over a fitted tank, a pleated mini with shorts underneath, knee socks and chunky pink platforms, with long smooth hair, bold lashes, overlined glossy lips and shimmery lids. The brunette takes a black faux-leather jacket, a purple top, wide-leg cargo pants and black platform sneakers, with a high ponytail or sleek waves, purple shadow and deep nude gloss. Tiny shoulder bags and oversized sunglasses finish both. I'd break in the platforms around the house a few evenings before, because they're the piece that ends the night early. Repeat pink or purple across both outfits so you look like a set.
If the Blonde Wants to Play Blair
Sometimes both friends want the same role, or the brunette has her heart set on Marilyn. That's fine; it just means one of you wears a wig, and how you put it on decides whether it looks like hair or like a costume piece.
Dark hair under a blonde wig
This is the harder swap, because dark roots show through any thin spot or parting. I braid the hair flat to the head, cover it with a wig cap in a light beige rather than black, and pick a wig with a lace or skin-coloured parting. A little foundation dabbed along the hairline hides any dark edge at the temples.
Blonde hair under a dark wig
Easier, since dark wigs are denser. Pin the hair flat, use a dark wig cap, and check the nape at the back where a stray blonde wisp tends to escape.
Temporary colour sprays
I'm cautious with them. They work for a quick tint, but they rub off on collars, pillows and anyone you hug, and a white or pastel outfit will show it by midnight. If you use one, spray it on before you dress, let it dry fully, and wear something dark near the neckline. Wash it out the same night, because colour left in overnight can stain light hair.
Whatever you choose, brush any synthetic wig with a wide-tooth comb before the night and keep it away from curling irons, candles and heaters. Most cheap synthetic fibres frizz or melt with heat.
Your Hair Already Picked Half the Costume
A good friend costume is one you can both wear all night and still be recognised in. The list runs from nostalgic TV friends and cartoon heroines to celebrity looks and a few made-up themes like the sun and moon. Start with a pair that fits your personalities, then adjust coverage, budget and layers for your local weather. Your own hair colour can do the casting, though a wig makes it easy to swap roles if you both want the same character. Coordinated makeup, light props, sensible shoes and one repeated colour or accessory hold the pair together. And getting ready side by side is half the fun of the night.



























