Last updated: September 12, 2026· By Seckin Peker

Halloween Costume Idea For Fallout Fans

Lucy MacLean From Fallout Halloween Costume

Three days out of Vault 33, and the wasteland still hasn’t taught her to stop trusting people.
badass womenPost ApocalypticSci-fi
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Quick Answer: The Lucy MacLean Halloween costume is a Vault 33 jumpsuit layered under scavenged leather gear, finished with a ponytail and a few wasteland props.
  • Vault 33 Blue & Yellow Jumpsuit (essential)
  • Leather Harness, Bracers & Knee Pads Set
  • Waxed Canvas Backpack
  • Pip-Boy Prop Replica
  • Prop Ray Gun
  • Brown Knee-High Boots
  • Royal Blue Satin Scrunchies

Lucy MacLean spends most of Fallout’s first season doing something almost nobody left in the wasteland still does, following the rules even when they cost her. The blue and yellow Vault 33 jumpsuit is what makes this read as her instead of a generic sci-fi survivor, so it’s not a piece to swap out for a different color. She’s not a niche pick either: Amazon renewed the show for a third season in May 2025, before season two had even aired (Wikipedia), and season two just wrapped one of the best-reviewed runs of the year.

Items Total7 Items
DifficultyModerate
VibeVault Suit Wasteland Survivor
Cost$192-$606

Lucy MacLean Halloween Costume Items

Lucy MacLean from Fallout Halloween costume infographic showing Vault 33 jumpsuit, leather harness and bracers set, canvas backpack, Pip-Boy replica, prop ray gun, knee-high boots, and blue hair scrunchies

Lucy MacLean Costume Items

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Lucy MacLean Fallout Vault 33 Wasteland
  • 1 Vault 33 Blue & Yellow Jumpsuit (essential)This is the whole costume in one piece, a fitted blue coverall with mustard yellow trim across the shoulders and a vault number patch on the chest. Buy your normal size rather than sizing up, a baggy jumpsuit reads as pajamas instead of a uniform. Skip it and everything else on this list is just a backpack and some jewelry.
    See on Amazon
  • 2 Leather Harness, Bracers & Knee Pads SetA set of straps, arm bracers, and knee guards worn over the jumpsuit. This is what turns a vault uniform into gear for someone who has actually been outside. It runs warm under a jumpsuit at a crowded party, so don’t be surprised if you need a break from it.
    See on Amazon
  • 3 Waxed Canvas BackpackA weathered brown travel pack. Check your closet or a thrift store first, plain canvas backpacks in brown are common secondhand.
    See on Amazon
  • 4 Pip-Boy Prop ReplicaA die-cast replica with a working FM radio and an LCD screen, officially licensed by Bethesda rather than a plastic toy, and priced closer to a real electronics purchase than a costume prop. It’s the single most recognizable object in the whole Fallout universe, but it’s also fully optional. The jumpsuit already does the job of identifying the character without it.
    See on Amazon
  • 5 Prop Ray GunA 20 inch foam prop styled like the sidearms wasteland travelers carry. One real limit worth knowing: this specific listing won’t ship to New York addresses under the state’s prop weapon rules, so check your own state before you order.
    See on Amazon
  • 6 Brown Knee-High BootsLace-up boots with a low, flat heel. You’ll likely be on your feet for hours, so fit matters more than the buckle count.
    See on Amazon
  • 7 Royal Blue Satin ScrunchiesA two pack for a simple ponytail. Check your hair accessory drawer before you buy a pack of these.
    See on Amazon
Lucy MacLean from Fallout wearing the blue and yellow Vault 33 jumpsuit with leather harness and backpack, front view reference for the Halloween costume

How to Style the Lucy MacLean Halloween Costume

The blue jumpsuit against all that scavenged leather is what sells this costume, one half says vault, the other says wasteland. Take the harness off and you’re just wearing a jumpsuit. At a real party, the moment this falls apart is a backpack that hangs empty and flat instead of full and slung low across one shoulder like it’s actually carrying something she needs.

In season two’s “The Golden Rule,” Lucy gives up her only stimpak to save a stranger instead of the man she’s traveling with, then tells him flatly that the rule only applies to people. It’s the same line she threw at the Ghoul back in season one, when she told him she might end up looking like him but she’d never be like him. She keeps drawing a moral line that most people in the wasteland stopped drawing a long time ago.

Skip the fabric softener

Lucy’s jumpsuit gets more torn and dirty as the season goes on. A pressed, spotless jumpsuit reads as a Halloween costume. A scuffed knee and a little dirt reads as someone who’s actually been outside a vault.

Carry the gun, don’t try to holster it

Nothing on this list is built to hold a prop gun against your body. Strapping it to the harness with tape looks worse than just carrying it in one hand all night.

Lucy MacLean Group Halloween Costume Ideas

Duo Idea

Lucy MacLean & The Ghoul (Cooper Howard)

Excellent duo, and the easiest sell on this page. Lucy and Cooper Howard are the two characters most of the marketing for this show has been built around, and the contrast does the work for you: her clean vault blue against his rotted duster and cracked ghoul makeup. Neither costume is hard to explain on its own, and together they’re immediately readable even to someone who’s only seen a trailer.

Lucy MacLean The Ghoul (Cooper Howard)

Group Idea: Season One’s Three Leads

Lucy MacLean, The Ghoul & Maximus

Strong group if you can talk two other people into it, because Maximus is the piece that decides whether this works. His look means a real suit of Brotherhood of Steel power armor, or at least a convincing squire’s uniform, not just a costume-shop add-on. Get that right and you’ve got three completely different factions from the same show standing next to each other. Get it wrong and Maximus just looks like an extra with nothing to do with the other two.

Lucy MacLean The Ghoul (Cooper Howard) Maximus
Lucy MacLean from Fallout posed in the wasteland wearing the Vault 33 jumpsuit and leather gear, reference image for the Halloween costume

Lucy MacLean Halloween Costume DIY Tips

Building the Look

Two items here are genuinely costume-specific. The rest, most closets already have something close.

  • Jumpsuit: buy this one, the vault-blue and yellow combo isn’t something you’ll find secondhand.
  • Leather harness set: buy this one too, it’s built for the costume and hard to fake with normal belts.
  • Backpack: check your closet or a thrift store before buying anything new.
  • Boots: check your closet first, plain brown knee-high boots turn up often enough secondhand.
  • Scrunchies: check your hair drawer before you buy a pack.
  • Pip-Boy replica: skip it entirely if $299 is more than you want to spend on one night.
  • Gun prop: buy it, or skip it if you’d rather not carry a prop weapon at all.

Playing Lucy at the Party

She stays polite even when people don’t deserve it, and that’s most of the performance right there.

  • If someone asks what your costume is, answer with an upbeat “okey dokey” before you actually explain it.
  • She helps people even when it costs her. If someone at the party needs something, say yes before you think about it.
  • Don’t try to play her tough. For most of season one she reads as naive more than hardened, and that’s the more accurate performance anyway.

Lucy MacLean Halloween Costume: FAQ

Start with the blue and yellow Vault 33 jumpsuit, that’s the whole identity of the costume. Layer the leather harness, bracers, and knee pads over it, sling on a weathered canvas backpack, and lace up brown knee-high boots. Tie your hair back with a royal blue scrunchie and carry a Pip-Boy replica and a prop gun if you want the full wasteland look.

Yes, and more than most shows this old. Fallout season two ran weekly from December 2025 into February 2026 to some of the best reviews of the year, and Amazon renewed the show for season three before season two even aired. Recognition is at a high point, not fading.

Her catchphrase is a simple “Okey dokey,” usually said with more optimism than the situation deserves. In season one’s “The Ghouls,” she tells Cooper Howard, “I may end up looking like you, but I’ll never be like you. Golden Rule, motherfucker.” In season two’s “The Golden Rule,” she echoes it again after giving up her only stimpak: “That rule is for people. You’re disgusting. Cruel. I am nothing like you.”

Ella Purnell. She also voices Jinx in Arcane, a role that won her an Annie Award for voice acting, and played Jackie Taylor in Showtime’s Yellowjackets before that.

No. It’s the most expensive item on this list by far, and the jumpsuit alone already gets you recognized as a Vault 33 dweller. Add it only if you want the officially licensed version and don’t mind the price.

Not always. This specific listing won’t ship to New York addresses under the state’s prop weapon rules. Check your own state’s listing page before you order, and have a backup plan if you’re local to a restricted state.

There’s no confirmed date yet. Filming was still the stated priority as of late summer 2026, with post-production to follow, so most reporting expects a 2027 release rather than anything sooner.

What vault does Lucy MacLean come from?

What does Lucy say instead of a simple “yes”?

Who plays Lucy MacLean in Fallout?

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