Last updated: June 20, 2026ยท๐Ÿ”„ Guide reviewed and refreshed ahead of Halloween 2026.ยท By Seckin Peker

Halloween Costume Guide

Renee Montoya from Birds of Prey Halloween Costume Guide

Ten years of solved cases. Zero promotions. One very well-earned resignation.
DC Rosie Perez Badass Women Curly Hair Detective Gun Police Suit Vigilante Watch
๐Ÿ”
Quick Answer: The Renee Montoya Halloween costume is a utilitarian detective build anchored by a black blouse, green chinos, and a police badge clipped to the belt.
  • Black V Neck Blouse (essential)
  • Police Badge Prop (essential)
  • Short Black Wavy Wig
  • Black Slim Watch
  • Green Chino Pant
  • Model 1872 Peacemaker Revolver prop
  • Diamond Cut Chain Necklace
  • Dark Brown Leather Belt
  • Brass Knuckles Pin
  • Black Combat Boots

Renee Montoya is the best detective in the Gotham City Police Department, which is exactly why she has been a detective for ten years while less capable men got promoted around her. The badge on the belt and the revolver at the hip are the two details that make this costume identifiable. Birds of Prey was released in 2020, and Renee reads best at a party where at least one other member of the group is from the same film.

Items Total10 Items
DifficultyEasy
VibeGotham Detective On Her Last Nerve
Cost$45-$140

Renee Montoya Halloween Costume Items

Renee Montoya from Birds of Prey Halloween costume infographic showing black v neck blouse, green chino pants, dark brown leather belt, police badge prop, revolver prop, short black wavy wig, brass knuckles pin, chain necklace, black slim watch, and black combat boots

Renee Montoya Costume Items

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Renee Montoya Birds of Prey Rosie Perez GCPD Detective
  • 1 Black V Neck Blouse (essential)A relaxed, fluid black blouse in a V-neck cut, worn slightly loose rather than tucked in tight. Renee’s wardrobe throughout Birds of Prey is practical and sharp without being stiff, and the V-neck combined with the badge on the belt is the visual combination that reads as detective rather than generic professional. Leave the bottom edge slightly untucked at the front.
    See on Amazon
  • 2 Short Black Wavy WigRenee has dark wavy hair throughout the film. If your hair is already dark and wavy, skip this entirely. If you are wearing the wig, position it at the natural hairline before adding any accessories. A wig sitting too far back on the head shows at the front in photos.
    See on Amazon
  • 3 Black Slim WatchA clean dark-faced watch on the wrist. Renee is the kind of person who checks the time a lot, usually because she has somewhere more important to be than wherever she currently is. Check your own collection before buying.
    See on Amazon
  • 4 Green Chino PantSlim or straight fit in an olive or military green. The green reads as practical and work-ready rather than fashion-forward, which fits Renee’s utilitarian aesthetic. Check your wardrobe before buying. Any dark chino in green or olive without prominent branding works here.
    See on Amazon
  • 5 Model 1872 Peacemaker Revolver propThis prop revolver represents Renee’s backup sidearm, which she carries outside her duty weapon and eventually hands to Harley Quinn during the final sequence. The revolver is more visually distinctive than a prop pistol for photos and costume recognition. Check venue rules before bringing any prop weapon to an event. The Police Badge Prop alone does the recognition work at events where props are not permitted.
    See on Amazon
  • 6 Diamond Cut Chain NecklaceA delicate chain worn at collar length, visible above the V-neck. A small personal detail that adds to the layered look without reading as costume jewelry. Check your own jewelry collection first.
    See on Amazon
  • 7 Dark Brown Leather BeltA sturdy belt in dark brown leather with a silver or brass buckle. This sits at the natural waist and is where the Police Badge Prop clips. Check your wardrobe before buying: most people own a belt that reads correctly here.
    See on Amazon
  • 8 Police Badge Prop (essential)The most important recognition item in this build. The badge clipped to the belt at the front is what immediately reads as law enforcement detective. Without it, the rest of the costume is a sharp casual look without a character context. With it, the reference lands. Clip it to the belt or carry it in a wallet-style holder for a more plainclothes detective effect.
    See on Amazon
  • 9 Brass Knuckles PinRenee uses actual brass knuckles during the final battle sequence at the Booby Trap. The pin version is the wearable costume equivalent and a small detail that fans of the film will recognize. Attach it to the jacket lapel or a bag strap.
    See on Amazon
  • 10 Black Combat BootsAnkle-height or knee-height black leather or faux-leather combat boots. Renee needs footwear that works for both detective work and a full-scale fight at a carnival attraction, and the combat boot silhouette does both. Check your closet before buying.
    See on Amazon
Rosie Perez as Renee Montoya in Birds of Prey promotional poster, showing her detective look with dark blouse, trousers, police badge on belt, and confident posture

How to Style the Renee Montoya Halloween Costume

The badge needs to be clipped at the belt rather than tucked in a pocket or held in a hand. A badge that is immediately visible at hip level is what reads as detective. One in a pocket is just a prop you have to pull out and explain. The wig, if you are using one, needs to sit at the natural hairline before the accessories go on. A hairline that shifts back half an inch during the night reads wrong in every photo taken in the second half of the evening.

Renee shows up at Harley Quinn’s apartment while Harley is making breakfast, interrupts her mid-bite, and then chases her through a crowded market. She loses the chase. She then goes back to the GCPD smelling of garbage, changes into a borrowed graphic tee, and continues building her case against Roman Sionis. She does not slow down. She also does not get any credit. These things are related.

Clip the badge before leaving, not at the venue

The Police Badge Prop clips to the belt and should be positioned on the dominant-hand side at approximately hip height. If you clip it after arriving at the event, you will spend the first fifteen minutes adjusting the angle while holding a drink. If the badge clip is loose and the badge rotates to face backward during the night, it stops doing any recognition work. Check the clip tension at home and tighten it if it does not hold firmly in place.

Check prop weapon rules before bringing the revolver

The toy revolver is the most visually effective prop in this build for photos, but indoor venues, particularly licensed premises, sometimes have rules against prop firearms regardless of material. Check the venue’s policy before the event rather than at the door. The Police Badge Prop, revolver, and brass knuckles pin together do the same recognition work. If the revolver is not permitted, the badge and pin alone are sufficient and require no adjustment to the rest of the costume.

Renee Montoya Group Halloween Costume Ideas

Couples Idea

Renee Montoya & Harley Quinn (Birds of Prey)

Excellent pairing with genuine on-screen antagonism that eventually becomes respect. Harley is the character most people at a general party will recognize, which gives Renee the context she needs to land as a specific character rather than a generic detective costume. The visual contrast between Renee’s utilitarian dark look and Harley’s neon chaos reads from across a room. Harley Quinn’s Birds of Prey look has a dedicated CostumeRealm guide.

Renee Montoya Harley Quinn

Duo Idea

Renee Montoya & The Huntress (Birds of Prey)

Strong pairing between the two most serious members of the eventual Birds of Prey roster. Renee and Helena Bertinelli share a driven, no-nonsense quality that makes them a natural pair even though they spend most of the film barely tolerating each other’s methods. The Huntress has a CostumeRealm guide. The visual contrast between Renee’s plainclothes detective look and the Huntress’s crossbow-wielding vigilante gear reads clearly as a deliberate pairing.

Renee Montoya The Huntress

Group Idea: Birds of Prey Cast

Renee Montoya, Harley Quinn, The Huntress, Black Canary, Cassandra Cain

Excellent group with all five characters having dedicated CostumeRealm guides, making this one of the most completely supported group builds available from a single film. The visual range across the five is wide enough that the group reads as a deliberate theme at a glance, and Harley Quinn’s recognizability anchors the group for anyone who does not immediately place the others.

Renee Montoya Harley Quinn The Huntress Black Canary Cassandra Cain

Group Idea: Tough Women in Action

Renee Montoya, Lana Kane, Trinity, Sadie Adler, Selina Kyle

Might work, but the concept is looser than the group name suggests. Lana Kane is a spy. Trinity is a hacker and rebel operative. Sadie Adler is a bounty hunter from a video game set in 1899. Selina Kyle is a jewel thief turned anti-hero. Renee Montoya is a Gotham detective turned vigilante. The shared quality is competence under pressure in a world run by people they do not respect, which is a real theme. Whether it reads at a party without explanation depends on how committed everyone is to the costumes.

Renee Montoya, the Huntress, Harley Quinn, Cassandra Cain, and Black Canary from Birds of Prey all together, showing the visual contrast across the full Birds of Prey cast for a group Halloween costume

Renee Montoya Halloween Costume DIY Tips

Building the Look

This is one of the most wardrobe-friendly builds in the Birds of Prey lineup. Seven of the ten items are basic clothing and accessories that most people already own or can thrift cheaply. The badge and revolver prop are the only items worth buying specifically for the costume.

  • Black V neck blouse: check your wardrobe. Any relaxed black blouse in a V-neck works. A fitted cut is less accurate than a slightly loose one.
  • Green chino pant: thrift this. Olive or military green chinos are common in second-hand stores. Avoid anything with heavy distressing or fashion detailing.
  • Dark brown leather belt: check your wardrobe first. Any sturdy dark brown belt with a simple silver or brass buckle reads correctly.
  • Black combat boots: most people own these or something close. Any ankle-height or knee-height black boot works.
  • Black slim watch: check your own collection. The specific style matters less than having something on the wrist.
  • Diamond cut chain necklace: inexpensive new or easy to thrift. Any delicate silver chain at collar length works.
  • Short black wavy wig: skip if your hair is already dark and wavy.
  • Police Badge Prop: buy this. It is inexpensive and the single most essential recognition item in the build.
  • Model 1872 Peacemaker Revolver prop: worth buying for photos, but check venue rules before bringing it. The badge alone is sufficient if prop weapons are not permitted.
  • Brass Knuckles Pin: inexpensive and a nice detail. Fans of the film will recognize it immediately.

Playing Renee at the Party

Renee talks like a cop in a bad 1980s movie. She knows this. She does it anyway because she has earned the right to. She is also extremely good at her job, which is the source of most of her problems.

  • When asked who you are: “Detective Montoya, GCPD. Formerly.” Let the badge do the next sentence.
  • Her worldview in one line: “We got to clean this city from the inside out.” Say it when something at the party goes wrong. It will apply.
  • The correct response to being complimented on solving something: say nothing. Accept no credit. Someone else will take it anyway.
  • If someone in your group is playing Harley Quinn, maintaining a visible ongoing tension that eventually softens into reluctant respect is the accurate dynamic. The two of them end the film on the same team. Getting there takes the whole movie.
  • If someone in your group is playing Patrick Erickson, do not talk to them. This is both in character and might be personally satisfying.

Renee Montoya Halloween Costume: FAQ

Put on the Black V Neck Blouse, then the Green Chino Pant with the Dark Brown Leather Belt. Add the Black Combat Boots, clip the Police Badge Prop to the belt, and pin the Brass Knuckles Pin to the jacket or bag. Hang the Diamond Cut Chain Necklace at the collar, add the Black Slim Watch, and carry the toy revolver at the hip. Add the Short Black Wavy Wig if your hair is not already dark and wavy. The badge and the revolver together are what make the costume read as Renee Montoya.

Niche without context. Birds of Prey came out in 2020 and did not get a sequel, so Renee Montoya specifically will not land at a general party without a Harley Quinn nearby to anchor the reference. The costume itself reads as a sharp detective look regardless of recognition, which works at most Halloween events even if no one places the character.

Renee Montoya is played by Rosie Perez in Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn), released February 7, 2020 (IMDb). Perez is known for her earlier roles in White Men Can’t Jump and Do the Right Thing. Renee Montoya previously appeared in live-action as portrayed by Victoria Cartagena in the Gotham TV series.

Renee has been the best detective on the force for years while her male colleagues received the credit and the promotions. The specific breaking point is her former partner Patrick Erickson, who stole credit for her career-making case ten years before the film and continues to block her throughout the story. When Erickson publicly takes credit for bringing down Roman Sionis’s empire, a case Renee actually solved while suspended, she hands over her badge on the same day.

Renee carries a Glock 19 as her duty weapon and a snub-nosed revolver as a backup sidearm, which she hands to Harley Quinn during the pier sequence. She also uses a police baton and brass knuckles when fighting Black Mask’s henchmen. The revolver prop and brass knuckles pin in this build cover both weapon types.

The broad character concept is consistent: a skilled GCPD detective who eventually leaves the force to pursue justice independently. In the comics, Renee Montoya later takes on the Question mantle after Vic Sage’s death, becoming a masked vigilante investigator. The film does not go that far, but the trajectory from frustrated detective to rogue vigilante tracks with the source material.

When Renee has to change her clothes at the GCPD after the garbage incident, she pulls something from the lost-and-found and ends up in a graphic tee reading “I SHAVED MY BALLS FOR THIS?” in red capital letters across the chest. She wears it with complete deadpan professionalism. The Huntress describes Renee as talking like the cop in a bad 1980s movie, and the shirt does not help that assessment.

What did Patrick Erickson do to Renee Montoya ten years before Birds of Prey?

How does Renee Montoya survive being shot by Roman Sionis at the end of the Booby Trap battle?

Which two women join Renee Montoya in founding the Birds of Prey vigilante team?