Last updated: May 23, 2026Β·πŸ”„ Guide reviewed and refreshed ahead of Halloween 2026.Β· By Seckin Peker

Halloween Costume Guide

Montana Duke Halloween Costume Guide

AHS: 1984  Β·  Billie Lourd  Β·  Camp Redwood

She befriended Brooke with genuine warmth and a completely hidden murder agenda. The jacket survived both.

American Horror Story Billie Lourd TV Series 80s Outfits Leopard Vintage Blonde Badass Women
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Quick Answer: The Montana Duke Halloween costume is built on a leopard mini dress and turquoise leather fringe jacket β€” the two pieces that make it recognizable as Montana rather than a generic ’80s look.
  • Leopard mini dress (essential)
  • Turquoise leather fringe jacket (essential)
  • Opaque pantyhose
  • Choker necklace
  • Black boots

Montana Duke is a Camp Redwood counselor in AHS: 1984 who presents herself as Brooke Thompson’s warmest, most enthusiastic new friend while secretly working with the Night Stalker to have her killed, as covered in the AHS Fandom wiki. The turquoise fringe jacket is what separates this costume from every other leopard print look at a Halloween party. Recognition is solid among AHS fans; outside that audience the look reads as a confident ’80s party costume, which works fine on its own.

Items Total5 Items
DifficultyEasy
Vibe’80s Chaos
Cost$50–$110

Montana Duke Halloween Costume Items

Montana Duke Halloween costume guide infographic showing all 5 items including leopard mini dress, turquoise leather fringe jacket, opaque pantyhose, choker necklace, and black boots from AHS 1984

Montana Duke Costume Items

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Montana Duke AHS: 1984 Billie Lourd 80s Halloween
  • 1 Leopard Mini DressCRITICAL. Montana’s leopard print is worn unironically and with complete confidence β€” which is the only way to wear leopard print. The dress should be genuinely short and fitted. A loose or longer leopard dress shifts the reading away from Montana and toward a different era entirely. If the print is too small or too muted, it won’t read across a room. Go bold.
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  • 2 Turquoise Leather Fringe JacketCRITICAL. This is the single most character-specific item in the costume. The turquoise color against the leopard print is an ’80s combination that reads immediately, and the fringe detail makes it recognizable to AHS fans from across the room. Without this jacket, you are wearing a leopard dress. With it, you are Montana Duke. Do not substitute with a different color β€” the turquoise is the point.
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  • 3 Opaque PantyhoseSUPPORTING. Practical for a night out and period-accurate for the ’80s. Montana’s look is not a summer look β€” the pantyhose keep the costume from reading as too casual. Black opaque is correct.
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  • 4 Choker NecklaceSUPPORTING. A choker at the throat with the fringe jacket reads as deliberately ’80s rather than accidentally retro. Any simple black choker works β€” the character’s jewelry is not the focus of the costume.
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  • 5 Black BootsOBVIOUS. Above the ankle, block or flat heel. Montana is an aerobics instructor who spends a summer at a camp β€” her footwear is practical. Stiletto heels read wrong. Check your closet first.
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Montana Duke costume styling reference showing the leopard mini dress and turquoise leather fringe jacket combination with black boots from AHS 1984

How to Style the Montana Duke Halloween Costume

The jacket has to be on, not draped over a shoulder or tucked under an arm. The color combination β€” turquoise against leopard β€” only reads as a deliberate costume choice when both pieces are fully worn together. Montana’s makeup is the other element that matters: heavy eye makeup in bright tones, very ’80s, very done. If the makeup is understated, the costume shifts from Montana Duke to generic vintage dress. Montana is described as having bright heavy eye makeup as a defining feature β€” a bare face with this outfit reads as someone who found the jacket at the back of a closet rather than a character.

In the show, Montana is the person in any group who says the thing everyone else is thinking but would not say out loud β€” and says it with genuine enthusiasm, not as a provocation. There is a scene early in the season where she meets Brooke for the first time, instantly declares them best friends, and means it completely. The fact that she also has a secret agenda to have Brooke killed does not make the warmth any less real to her. That specific combination of genuine friendliness and absolute ruthlessness is what makes the character interesting.

The Fringe and Party Crowds

Leather fringe catches on everything at a crowded party β€” bag straps, other people’s buttons, door handles. The fringe on this jacket is a feature of the costume and also a practical hazard. If you are going somewhere packed, be prepared to spend time detaching yourself from things. Montana would find this funny. You might not after the third time.

The ’80s Makeup Is Not Optional

Heavy eyeliner, bright eyeshadow, and enough blush to be visible in low lighting. Montana’s look is not subtle. If you are not used to heavy eye makeup, apply it at home in the light you will actually be seen in β€” fluorescent bathroom lighting lies to you consistently. The makeup does more for the ’80s reading of this costume than any single item of clothing.

Montana Duke Group Halloween Costume Ideas

Couples Costume

Montana Duke & Brooke Thompson

Strong dynamic for AHS fans because the frenemy tension between them is the emotional engine of the season. The contrast between Montana’s loud leopard-and-turquoise and Brooke’s more subdued ’80s look is noticeable without either costume competing for attention. People who watched the show will appreciate the specific irony of this pairing.

Montana Duke Brooke Thompson

Duo Costume

Montana Duke & Mr. Jingles

Strong contrast costume β€” Montana’s loud ’80s color and Mr. Jingles’ slasher gear are visually opposite, which is the whole point. Their alliance in the show is the season’s central surprise and the visual pairing carries that irony well. Most people will read this as “the glam one and the horror one” even without AHS context, which is enough for it to work.

Montana Duke Mr. Jingles

AHS: 1984 Camp Redwood

Montana, Brooke Thompson, Mr. Jingles, Xavier Plympton, Chet Clancy

Might work, but the group has essentially no recognition outside AHS: 1984 fans. Five people in ’80s outfits at a general Halloween party reads as “group of friends in ’80s costumes” rather than Camp Redwood specifically. This lands well at an AHS event or with a crowd that watched the season β€” anywhere else it needs labels.

Montana Duke Brooke Thompson Mr. Jingles Xavier Plympton Chet Clancy

Iconic ’80s Slasher & Horror Girls

Montana, Ziggy Berman, Casey Becker, Ellen Ripley, Grace

Strong group with excellent franchise variety. Montana’s ’80s color-block stands out against Casey Becker’s suburban casualwear and Ellen Ripley’s jumpsuit, which means every person in the group has a visually distinct read. The range of source material means most people at any event will recognize at least two or three characters.

Montana Duke group Halloween costume ideas from AHS 1984 including Camp Redwood group and iconic horror girls lineup

Montana Duke Halloween Costume DIY Tips

What to Buy vs. What You Might Already Own

Five items, two of which are the whole costume. Everything else is either already owned or available cheaply.

  • Leopard mini dress: buy it or thrift it β€” thrift stores have these reliably in October
  • Turquoise fringe jacket: buy it, this is the non-negotiable item you cannot substitute
  • Opaque black pantyhose: most wardrobes have these, check first
  • Choker necklace: inexpensive and widely available, or check your jewelry box
  • Black boots: check your closet β€” any short black boot works

Playing Montana at a Party

Montana’s energy is loud, warm, and completely unselfconscious. She talks to everyone and means all of it, even the parts that are slightly alarming.

  • “You guys are doing this purgatory thing all wrong. We can be gods here!” β€” works at any party that is going well
  • “There is a constant feeling of emptiness and longing, but that is pretty much how I felt when I was alive, so!” β€” best delivered cheerfully, mid-conversation, as if it is a completely normal thing to say
  • Introduce yourself to strangers with full enthusiasm β€” Montana never met someone she didn’t immediately declare her new best friend
  • The aerobics angle: if a song with a good beat comes on, lead a thirty-second aerobics routine. Montana would absolutely do this

Montana Duke Halloween Costume: FAQ

You need a leopard mini dress, turquoise leather fringe jacket, opaque pantyhose, choker necklace, and black boots. The dress and jacket are the two essential pieces β€” without both together, the costume reads as a generic ’80s look rather than Montana specifically. The turquoise fringe jacket is the identifier; do not substitute it with a different color or style.

  • “You guys are doing this purgatory thing all wrong. We can be gods here!”
  • “There’s a constant feeling of emptiness and longing, but that’s pretty much how I felt when I was alive, so!”
  • “I know I seem pretty bitchin’. But I have moments of doubt too!”

The second one is her best line. Say it with the same energy as someone describing what they had for lunch.

It is a niche pick by recognition β€” AHS: 1984 has a dedicated fanbase but casual viewers may not place Montana by name. The costume holds up independently though, because the leopard and turquoise fringe combination reads clearly as ’80s and the outfit works as a confident retro look even without the AHS context.

Billie Lourd plays Montana Duke. It was her fourth role in the American Horror Story anthology. She is also known for playing Lieutenant Connix in the Star Wars sequel trilogy, according to the AHS: 1984 Wikipedia entry.

Montana and Richard Ramirez, the Night Stalker, are romantically involved in AHS: 1984. Montana recruits Ramirez to kill Brooke Thompson, whom she blames for her brother Sam’s death. Their alliance is one of the central reveals of the season and reframes everything Montana has done up to that point.

Montana presents herself as Brooke’s enthusiastic new friend while secretly plotting to have her killed. She blames Brooke for her brother Sam’s death, caused by Brooke’s former fiancΓ©. The frenemy dynamic between them is one of the season’s best character threads.

Montana is killed by Brooke during the season, but she continues as a ghost haunting Camp Redwood. As a ghost she decides that purgatory is more her speed and continues causing chaos at the camp, which is very on-brand for a character who once said “we can be gods here.”