Last updated: April 27, 2026· By Seckin Peker

Costume Guide

Billy Maximoff Halloween Costume Guide

WandaVision  ·  Julian Hilliard  ·  Marvel Studios

Billy Maximoff’s Halloween costume in WandaVision is a homemade Wiccan outfit — navy sweater and wind pants, red cape, fingerless gloves, and a headband. A Marvel costume that rewards comic book fans and Halloween guests alike.

WandaVision Marvel Superhero
🦸

Quick Answer: Navy crewneck sweatshirt and wind pants as the base, red cape over the back, navy headband, navy fingerless gloves, and Converse All Star high tops. The cape and the matching navy palette together communicate the Wiccan reference immediately to any WandaVision or Marvel Comics fan.

In WandaVision’s Halloween episode, Billy Maximoff dresses as Wiccan — his superhero alter ego from Marvel Comics. The costume is presented within the show as a homemade Halloween outfit, which gives it a specific warmth and accessibility. Billy is played by Julian Hilliard and is one of Wanda and Vision’s twin sons created within the Westview Hex, with inherited magical abilities that are only beginning to surface across the series.

Items Total6 Items
DifficultyEasy
Show2021
Cost$40–$90

Billy Maximoff Costume Items

Billy Maximoff WandaVision Wiccan Halloween costume infographic showing six labeled items: red superhero cape, navy blue headband, navy blue crewneck sweatshirt, navy blue wind pants, navy fingerless gloves, and Converse All Star high top sneakers

Billy Maximoff Costume Items — WandaVision

Affiliate links — we may earn a small commission at no extra cost to you.

Billy Maximoff WandaVision Halloween Marvel
  • 1 Red Superhero CapeThe most visually impactful piece — the red cape that transforms the navy base into Billy’s Wiccan Halloween costume
    See on Amazon
  • 2 Navy-Blue HeadbandNavy headband worn across the forehead as part of Billy’s homemade Wiccan costume in the WandaVision Halloween episode
    See on Amazon
  • 3 Men’s Fleece Crewneck SweatshirtNavy blue crewneck sweatshirt — the upper base layer of Billy’s outfit, worn under the red cape
    See on Amazon
  • 4 Men’s Wind PantNavy wind pants completing the lower half of the costume, consistent with the homemade superhero aesthetic of Billy’s Wiccan outfit
    See on Amazon
  • 5 Navy Fingerless GlovesNavy fingerless gloves adding the superhero accessory detail and completing the all-navy base palette of the costume
    See on Amazon
  • 6 Converse Unisex All Star ’70s High Top SneakersClassic Converse high tops — the footwear that grounds the superhero costume in the everyday quality of a kid’s homemade Halloween outfit
    See on Amazon
Billy Maximoff from WandaVision wearing his homemade Wiccan Halloween costume — navy crewneck sweatshirt, navy wind pants, red superhero cape, navy headband, and fingerless gloves as seen in the WandaVision Halloween episode

How to Style the Billy Maximoff Halloween Costume

The Billy Maximoff costume is built on a consistent navy palette with red as the single accent colour. Put on the navy crewneck sweatshirt and navy wind pants as the base. Pull on the Converse All Star high tops. Put on the navy fingerless gloves and position the navy headband across the forehead. Attach the red superhero cape over the back — most capes attach at the collar or shoulders with ties or clips. The cape should hang freely and move when walking, which is half the visual appeal of the costume at a Halloween event.

The specific quality that makes this costume work is its deliberate homemade charm. Billy’s Wiccan outfit in WandaVision is not a polished superhero suit — it is a kid’s Halloween costume assembled from matching navy clothing with a red cape added on top. The Converse shoes are part of that quality — they signal a child in a Halloween costume rather than an adult in superhero gear. Keeping the overall assembly looking coordinated but not overly precise is the correct aesthetic target. For in-character performance, Billy is earnest, curious, and already processing abilities he does not fully understand — a kid who is more thoughtful than his age should allow.

Getting the Navy Right Across All Pieces

The costume’s visual coherence depends on all the navy pieces reading as the same tone rather than a mix of different blues. Navy sweatshirt, navy wind pants, navy headband, and navy fingerless gloves should all be sourced or checked against each other in natural light before the event. A significant mismatch between the sweatshirt and the wind pants breaks the monochromatic palette that gives the costume its clean, intentional quality. When purchasing, look for pieces described as navy or dark navy rather than royal blue or cobalt, which read significantly differently in person and in photographs.

The Cape: Secure It Properly for a Full Night

The red cape is the Halloween costume’s most dramatic element and the piece most likely to shift, slip, or detach during an event. Before leaving, check that the cape attachment sits flat at the collar or shoulders without pulling on the neckline of the sweatshirt. If the cape tends to twist sideways during movement, a small safety pin through the cape and the sweatshirt fabric at each shoulder keeps it centred without any visible hardware from the front. Test the full range of movement — sitting, standing, walking — before the event to confirm the attachment is stable.

Billy Maximoff Group Halloween Costume Ideas

WandaVision Halloween Episode

Billy, Wanda Maximoff & Vision

Three of the four Maximoff family members in their WandaVision Halloween episode costumes — Billy’s homemade Wiccan navy-and-red, Wanda’s classic Scarlet Witch headpiece and red costume, and Vision’s own interpretation of his comic book appearance. All three costumes appear in the same episode and are among the most warmly received Easter eggs in the entire series for Marvel Comics fans. Adding Tommy as Speed completes the twin dynamic for a four-person group.

Billy Maximoff Wanda Maximoff Vision

Full WandaVision Cast

Billy, Pietro Maximoff & Agatha Harkness

Three more WandaVision characters rounding out the full Halloween episode ensemble — Pietro Maximoff’s Quicksilver costume and chaotic uncle energy, and Agatha Harkness’s witch aesthetic that takes on a very different meaning by the end of the series. Together with the first card’s three characters, this group covers the complete WandaVision Halloween episode cast across six people for anyone building a large group Halloween costume around the show.

Billy Maximoff Pietro Maximoff Agatha Harkness
Billy Maximoff Halloween costume assembled and displayed, showing the complete Wiccan outfit with red cape over navy sweatshirt and pants, navy headband, fingerless gloves, and Converse high tops — full Halloween costume reference

Billy Maximoff Costume DIY Tips

What to Buy vs What to Already Own

The Billy Maximoff Halloween costume is one of the most wardrobe-friendly builds available. Any navy blue sweatshirt and matching navy sweatpants or wind pants from existing wardrobe substitute well for the dedicated purchases. Any navy or dark headband works. The red cape and the Converse All Star high tops are the two items most likely to require dedicated purchases — the cape is character-specific and not a common wardrobe item, and the Converse high tops are the specific shoe silhouette that grounds the homemade quality of the costume. Total cost with good wardrobe coverage can be under $30.

  • Red superhero cape = dedicated purchase, the costume’s most visually impactful piece
  • Converse All Star high tops = dedicated purchase if not already owned
  • Navy sweatshirt, navy pants, navy headband, navy fingerless gloves = check wardrobe first
  • All navy pieces must be checked against each other for colour consistency before the event

The Homemade Superhero Look: Less Polish, More Charm

The most important thing to understand about the Billy Maximoff costume is that its charm comes from its deliberate imperfection. This is a child’s homemade Halloween costume assembled from matching sportswear and a store-bought cape — not a polished superhero suit. Resist the temptation to over-accessorise or add complexity. The six pieces in this guide are exactly right. Any addition beyond them risks turning a warmly recognisable WandaVision reference into a generic superhero Halloween costume that loses the specific in-show quality that makes the original memorable. Keep it simple, keep it navy, add the red cape, and wear the Converse.

  • Do not over-accessorise — six pieces is the correct build, not a starting point
  • The homemade quality is the costume’s charm, not a flaw to be corrected
  • Any addition beyond the six pieces risks losing the WandaVision-specific recognition
  • Navy palette consistency matters more than any individual piece’s quality

Billy Maximoff Halloween Costume — Frequently Asked Questions

Billy wears a homemade Wiccan Halloween costume — a navy crewneck sweatshirt, navy wind pants, a red superhero cape, a navy headband, navy fingerless gloves, and Converse All Star high top sneakers. The costume is a direct nod to his Marvel Comics superhero identity and appears in WandaVision’s Halloween episode alongside the other Maximoff family costumes.

Billy Maximoff is one of Wanda and Vision’s twin sons, created as part of Wanda’s reality-altering Hex in WandaVision (2021). He is played by Julian Hilliard. In Marvel Comics he becomes the superhero Wiccan, a powerful magic user and member of the Young Avengers. His WandaVision Halloween costume is a direct reference to that comic book identity.

Billy Maximoff is the child character in WandaVision. Wiccan is his superhero alter ego from Marvel Comics, where he is one of the most powerful magic users in the Marvel universe and a founding Young Avenger. In WandaVision’s Halloween episode, Billy dresses as Wiccan as a Halloween costume — a meta reference that hints at his future MCU potential.

Billy’s most significant moment in WandaVision is his revelation that he can hear people’s thoughts — delivered with wide-eyed surprise rather than alarm, and one of the clearest early signals of his inherited magical abilities. His interactions with Wanda carry a consistent warmth that anchors the emotional core of the show’s parent-child dynamic. For Halloween in-character delivery, Billy’s register is earnest and thoughtful — a kid who is processing considerably more than his age should require.

Yes — six pieces, all basic wardrobe items. The navy sweatshirt, wind pants, fingerless gloves, and headband are simple and widely available. The red cape and Converse high tops are the two most character-specific purchases. Total cost runs $40 to $90 depending on existing wardrobe coverage, and can be under $30 if most navy pieces are already owned.

Wanda Maximoff, Vision, Pietro Maximoff, and Agatha Harkness are the natural WandaVision group pairings — all five characters appear in the Halloween episode and together form one of the most recognisable Marvel Halloween group costumes available. Tommy Maximoff as Speed completes the twin dynamic for a two-person sibling costume.