Last updated: June 17, 2026ยท๐Ÿ”„ Guide reviewed and refreshed ahead of Halloween 2026.ยท By Seckin Peker

Halloween Costume Guide

Thing One and Thing Two from The Cat in the Hat Halloween Costume Guide

They were described as tame. The kites went through three walls. Make your own assessment.
The Cat in the Hat Blue Hair Curly Hair Cute Family Comedy
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Quick Answer: Dress as Thing One and Thing Two with matching red jumpsuits, numbered badges, and blue afro wigs.
  • Thing 1 and 2 Adult Costume (essential โ€” unisex)
  • Blue Afro Wig (essential โ€” both builds)
  • Thing One & Two T-Shirt with Blue Tutu Skirt (essential โ€” women’s build)
  • Red Shoes
  • Thing 1 and 2 Socks

Thing One and Thing Two sprint out of a red box, fly kites inside a house, knock over everything in the room, and get caught in a net before the mother gets home. The numbered chest badge is what separates this from a generic red jumpsuit, and the blue afro wig is what people see from across the room. They first appeared in Dr. Seuss’s The Cat in the Hat, published in 1957, and remain among the most recognized costume pairs at any Halloween event (Wikipedia). This guide covers both a unisex build based on the original illustrated look and a women’s build using a T-shirt and tutu skirt.

Items Total5 Unisex / 7 Women’s
DifficultyEasy
VibeCheerful Domestic Destruction
Cost$30-$90

Thing One and Thing Two Halloween Costume Items

Thing One and Thing Two unisex Halloween costume infographic showing the adult red jumpsuit costume, blue afro wig, numbered socks, red sneakers, and plush toy prop laid out as a complete 5-piece couples build

Unisex Thing One & Thing Two Costume Items

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Thing One and Thing Two The Cat in the Hat Dr. Seuss Couples Costume
  • 1 Thing 1 and 2 Adult Costume (essential)The full unisex build in one purchase. The red jumpsuit with the numbered chest badge is the direct match to the illustrated look. This set typically includes both numbered badges, which solves the coordination problem between two people building this costume simultaneously. Check sizing carefully. A jumpsuit that is too large loses the compact, energetic silhouette the characters are known for.
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  • 2 Blue Afro Wig (essential)The piece people see first. The electric blue afro is the most recognizable feature of the costume from any distance. A flat or dark wig does not read as Thing One or Thing Two regardless of what else you are wearing. Buy the brightest, fullest blue available. Secure it with bobby pins at both sides before leaving the house.
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  • 3 Thing 1 and 2 SocksCharacter-specific detail that adds commitment to the build. Visible above the shoe line and reinforces the numbered costume theme through the lower half.
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  • 4 Men’s Red SneakersBright red and practical for a full night. Check your closet before buying.
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  • 5 Thing 1 and 2 Plush Toy (Prop)Works as a photo prop or a conversation starter. If you are doing this costume solo, carrying the plush of the other Thing closes the concept without needing a second person.
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Thing One and Thing Two women's Halloween costume infographic showing blue tutu skirt, red numbered T-shirt, blue ponytail head bopper, blue afro wig, numbered glovettes, Thing One and Two socks, and red Mary Janes laid out as a complete 7-piece women's build

Women’s Thing One & Thing Two Costume Items

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Thing One and Thing Two Women’s Dr. Seuss Costume Red and Blue Costume Couples Costume
  • 6 Blue Tulle Tutu SkirtLayer this over the T-shirt at the natural waist. The blue extends downward and balances the red and blue palette across the whole look rather than concentrating all the blue in the wig.
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  • 7 Thing One & Two T-Shirt (essential)The numbered badge on the chest is the key character detail in the women’s build. Confirm the number with your partner before anyone buys anything. Two Thing Ones at the same party with the same partner is a problem that is easy to prevent and difficult to fix at the door.
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  • 8 Blue Ponytail Head BopperA more comfortable option than the full afro wig for a long night. Reads more clearly at close range than from across a large room. Useful at smaller events or as a backup if the wig becomes too warm to wear past midnight.
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  • 9 Blue Afro Wig (essential)The full wig reads more immediately than the head bopper at large events. Same pinning advice applies: two bobby pins at the base of each side before you leave. A full blue afro tilting sideways by 10pm is the most common failure mode of this costume and it is entirely preventable.
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  • 10 Thing One & Two GlovettesCharacter-specific accessory that brings the numbered theme through to the hands. Put these on before the wig so you have full visibility for the fitting.
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  • 11 Thing One & Two SocksVisible above the shoe line. Check your drawer before buying.
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  • 12 Red Mary Janes ShoesClean and practical. Check your closet before buying. Any bright red flat works.
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Thing One and Thing Two Halloween costume reference showing the red jumpsuit, numbered white chest badge, and electric blue afro hair that define the character look from The Cat in the Hat

How to Style the Thing One and Thing Two Halloween Costume

The blue wig is what people identify first, and it needs to be full and upright. A wig that has gone flat or tilted reads as a bad wig rather than a character choice, and once it tilts the numbered badge has to carry the whole costume on its own. The badge is the other critical element: it is what confirms which Thing you are, and it is what tells people this is a deliberate pairing rather than two people who happened to wear the same jumpsuit. If either the wig or the badge is wrong, the couple concept collapses into two individuals dressed in red.

In the book, Thing One and Thing Two are introduced as tame. The Cat says this with full confidence. Within about thirty seconds they have a kite inside the house and the fish is screaming. They are eventually stopped not by persuasion but by a net, which the boy has to chase them down to use. The Cat accepts this development without comment and puts them back in the box.

Confirm badge numbers before buying anything else

This sounds obvious and it is, and people still show up with two Thing Ones every year. The adult costume set includes both numbers in one purchase, which eliminates the problem at the source. If you are building from separate T-shirts or badges, assign numbers in the group chat before anyone orders anything. A Thing One standing next to another Thing One is a different story than the one Dr. Seuss wrote.

Pin the wig before leaving, not when it starts to fall

A full blue afro has enough surface area to catch on door frames, low ceilings, and other people’s costumes over the course of a long night. Two bobby pins at the base of each side of the wig solve this before it happens. Test it at home by walking briskly and turning your head sharply. If it holds through that, it will hold through the party. Fixing a tilted afro wig in a crowded bathroom at midnight is possible but not enjoyable.

Thing One and Thing Two Group Halloween Costume Ideas

Couples Idea

Thing One & Thing Two (The Cat in the Hat โ€” Already the Perfect Couple Costume)

Excellent couples costume because the concept is built directly into the characters. They are a matched pair by design, they have no independent identity from each other in the original book, and the numbered badges make the pairing immediately legible to anyone at any event. This is one of the rare costumes where both people wearing identical outfits is the correct choice rather than a coordination failure.

Thing One Thing Two

Duo Idea

Thing One, Thing Two & The Cat in the Hat (The Iconic Trio)

Excellent trio with the strongest visual contrast in the Dr. Seuss lineup. The Cat is tall, striped, and wearing a top hat. The Things are compact, identical, and wearing numbers. Three people, three very different silhouettes, one immediately recognizable universe. Adding the Cat also provides the group with a natural narrative anchor: someone who released the Things and now has to deal with the consequences. That is a dynamic that plays well all night.

Thing One Thing Two The Cat in the Hat

Group Idea: Dr. Seuss Characters

Thing One, Thing Two, The Cat in the Hat, Sam-I-Am, The Lorax, Cindy Lou Who

Strong group for any event with a broad age range. Each character has a distinct color palette and silhouette, which means the group reads as Dr. Seuss from across a venue without anyone needing to stand together. Thing One and Thing Two anchor the group as an already-built pair, which takes pressure off the other costume holders to find a matching partner.

Thing One Thing Two The Cat in the Hat Sam-I-Am The Lorax Cindy Lou Who

Group Idea: Iconic Mischievous and Chaotic Animated Duos

Thing One and Thing Two, Tweedledee and Tweedledum, Cosmo and Wanda, Dumb and Dumber, Pebbles and Bamm-Bamm

Might work, but this is five separate duos from five completely different franchises, which means ten people need to commit and coordinate across multiple costume builds. The “chaotic duos” concept holds as a theme but requires someone to run the group chat with genuine authority. At a large themed event with a fixed table, the lineup is visually striking. As a group moving through a venue, expect most people to identify each pair individually rather than as a unified concept, because none of these duos share a visual universe with the others.

Thing One and Thing Two character costumes at Seuss Landing in Universal Studios Islands of Adventure showing the full red jumpsuit, blue afro hair, and numbered badges that inspire the Halloween costume build

Thing One and Thing Two Halloween Costume DIY Tips

Building the Look

One of the most affordable recognizable Halloween builds available. The unisex version is effectively one purchase. The women’s version requires more pieces but most of them are cheap and easy to thrift.

  • Adult costume set: buy it. Gets both numbered badges in one purchase and removes the coordination problem.
  • Blue afro wig: also buy the character-specific version. A DIY blue afro from craft supplies will not hold its shape or its color through a full night. The specific wigs are inexpensive.
  • Red T-shirt for women’s build: very easy to thrift. Add the numbered badge with iron-on transfer or a printed sticker if you cannot find the character-specific shirt.
  • Blue tutu skirt: easy to thrift in Halloween season or buy cheaply new.
  • Blue ponytail head bopper: a valid and cheaper alternative to the full wig if comfort matters more than visual distance recognition.
  • Red shoes: check your closet. Any bright red flat, sneaker, or Mary Jane works.
  • Socks and glovettes: inexpensive and worth buying for the completed look. Skip them if you are on a very tight budget; they are supporting details, not essentials.

Playing the Things at the Party

Thing One and Thing Two do not have memorable dialogue. Their whole character is physical: they move fast, they do not acknowledge the rules, and they seem genuinely confused by the concept of consequences. That is a surprisingly playable dynamic at a party.

  • Move as a unit when possible. Thing One and Thing Two are not independent agents. If one of you goes somewhere, the other one follows. This is what makes the costume feel like a character rather than two people in matching outfits.
  • When things at the party go wrong: look at each other first, then at the thing that went wrong, then back at each other. No words needed. This is the full extent of their crisis management in the book.
  • They are enthusiastic, not malicious. The kites went through the walls because they were having a great time, not because they wanted to cause damage. Apply this reading to all party behavior.
  • If someone catches you doing something: look genuinely surprised that this is an issue. This is canon.

Thing One and Thing Two Halloween Costume: FAQ

The red jumpsuit with the numbered chest badge and the blue afro wig are the two elements the costume entirely depends on. Add Thing One and Thing Two socks, red shoes, and you are done. For the women’s build, swap the jumpsuit for the red T-shirt, blue tutu skirt, and red Mary Janes, with the blue wig or blue ponytail head bopper. The badge number is what tells people which Thing you are.

Yes, and it is one of the most reliably recognized couples costumes at any Halloween event. The Cat in the Hat has been in print since 1957, the 2003 film brought the characters to a generation of now-adult Halloween-goers, and the red jumpsuit plus blue afro combination reads immediately across every age group. Recognition is essentially universal.

Not in the original book. They sprint out of the box, fly kites through the house, knock everything over, and get caught in a net without saying anything quotable. In the 2003 live-action film, Dan Castellaneta gave them distinct voices and personality, but the characters are defined by what they do rather than what they say. The blue hair and the chaos are the whole character.

Dan Castellaneta, best known as the voice of Homer Simpson, voiced both Thing One and Thing Two in the 2003 live-action film. The physical roles were played by Danielle Chuchran and Taylor Rice as Thing One, and Brittany Oaks and Talia-Lynn Prairie as Thing Two.

You can, but half the costume concept goes with the missing partner. Solo, you are a person in a red jumpsuit with blue hair holding a number. The recognition works, but the dynamic that makes it interesting disappears. If you are genuinely going alone, carry the plush toy of the other Thing. It closes the loop.

The unisex build uses the full red jumpsuit for a direct match to the illustrated look. The women’s build swaps the jumpsuit for a red T-shirt and blue tutu skirt, with the option of a blue ponytail head bopper instead of the full afro wig. Both builds use the same numbered chest badge and red shoes. The full wig is more immediately recognizable at a crowded event; the head bopper is more comfortable for a long night.

The adult costume set includes both numbered badges in one purchase, which solves the coordination problem entirely. If building from separate pieces, assign the numbers before buying anything else. Thing One is the more frequently recognized number, so if one person is more visible or outgoing at the event, give them Thing One. This is a petty distinction but people will notice.

In The Cat in the Hat, how does the boy finally stop Thing One and Thing Two?

Which actor voiced both Thing One and Thing Two in the 2003 live-action film?

Thing One and Thing Two are also known by what alternate names?