K-Pop Demon Hunters, Pennywise, Nikki Freeman, Dolly Parton and He-Man form the top five Halloween costume searches for 2026. That ranking comes from a mentalfloss.com table that orders costumes by monthly Google search volume and average costume cost. The five are a mix of animation, horror, country music and 1980s nostalgia rather than a single genre. If you only want one answer to "what will be popular this year," these five names cover the strongest combination of search demand and retail attention.
A mentalfloss.com ranking puts K-Pop Demon Hunters at number one, with more than 200,000 Google searches in September. The costume centers on the animated film's performers, and wigs carry most of the look: pink for Mira and light purple for Rumi. The average reported cost is about $41.15, which is mid-range compared with the rest of the list. A wig plus a coordinated outfit reproduces the character more cheaply than a full pre-made costume set.
Pennywise ranks second on the mentalfloss.com list despite posting the highest raw search volume of any single entry, at 593,640 monthly searches. The listing attributes the surge to the *It: Welcome to Derry* prequel series, which refreshed interest in the Stephen King clown character. The average costume cost is around $48.96. Because the character relies on makeup, a wig and a ruffled collar more than on a specific garment, it is one of the easier looks to assemble from separate pieces.
Nikki Freeman from *Obsession* is the newest name on the list and the least searched of the top five, at 3,600 monthly searches on the mentalfloss.com table. The listing calls the film 2026's biggest horror hit and describes the costume as the breakout new option of the year. Its average cost of $27.23 makes it the cheapest entry in the top five by a wide margin. Low search volume here reflects how new the character is, not necessarily how many people will wear the look.
Dolly Parton takes fourth place with 444,490 monthly searches on the mentalfloss.com ranking, one of the highest figures among non-horror picks. The average costume cost listed is $55.65, the second-highest in the top five. The Strategist includes Dolly Parton among its editorial picks for the year. The look depends on a big blonde wig, heavy makeup and a rhinestone-heavy outfit, so it rewards thrift-store sourcing over a single packaged costume.
He-Man from Masters of the Universe closes the top five at 47,460 monthly searches on the mentalfloss.com table. Its average cost of $78.43 is the highest in the top five by a clear margin, largely because the muscular armored look resists easy substitution. The listing ties its popularity to 1980s muscle-and-power nostalgia. Anyone choosing He-Man should budget for the harness and prop sword, which are the parts that make the character readable.
Three runners-up outrank several top-five entries on raw search volume but sit outside the top five. Wednesday Addams posts 1,723,930 monthly searches and Mario 1,113,800 on the mentalfloss.com table, both far above K-Pop Demon Hunters or He-Man. Gru from *Despicable Me* ranks sixth with 164,160 searches, and Michael Jackson tenth with 647,290. The five-name list therefore reflects a combined view of search momentum and trend coverage, not search volume alone.
Average cost does not track search popularity, and the mentalfloss.com table makes the gap visible. Aunt Gladys from *Weapons* ranks seventh in searches but carries the highest average cost on the list at $81.00, while Wednesday Addams ranks eighth and costs about $33.81. Mario is ninth with an average of $38.45, and Michael Jackson tenth at $40.93. These figures are retailer-based averages, so a homemade or thrifted version can land well below them.
Spirit Halloween's 2026 trend report identifies 11 micro-trends rather than one dominant costume, as reported by qz.com and marthastewart.com. They include collegiate varsity jerseys and jackets under the label "Off Campus," and family sets built around Toy Story characters such as Woody, Buzz, Jessie and Slinky Dog. The report also names superheroes from *Spider-Man: Brand New Day* and Power Rangers, plus gaming looks drawn from Fortnite and Halo. A micro-trend is a cluster of related costumes that rise and fall together rather than a single must-have outfit.
Several of the Spirit Halloween trends point away from specific characters and toward a shared silhouette or material. Greek mythology armor and fantasy dragon riders and rogue adventurers both favor layered, faux-leather and metallic pieces. Y2K "it girl" glam leans on metallic fabrics, rhinestones, butterfly clips and platform heels. Inflatable joke costumes form a separate low-effort category, and horror-branded apparel lets people wear a franchise name rather than a full character.
Odysseus and Penelope from *The Odyssey* appear on the editorial side of the 2026 coverage. The Strategist lists Odysseus among its picks, and Costume Wall adds Odysseus and Penelope alongside Bad Bunny and Sabrina Carpenter. Spirit Halloween's Greek mythology armor trend covers the same territory from a retail angle. The pairing suits couples or groups, since the two characters are designed to be worn together.
Pokémon turns 30 in 2026, and Costume Wall highlights Ash, Misty and Brock as anniversary costume options. The characters are recognizable, require relatively few props, and work for groups of three. Because the trainers wear ordinary clothing with a few signature accessories, the look is easier to improvise than armor or full-body creature suits. Anyone who wants a low-cost group theme has a ready-made trio here.
Two entries on the mentalfloss.com list come from horror titles rather than from the broader trend reports. Aunt Gladys from *Weapons* ranks seventh with 3,600 monthly searches and an average cost of $81.00. Michael Jackson, listed under music icon, ranks tenth with 647,290 searches and an average of $40.93. Both show that a costume can enter the top ten through very different routes: one through a recent film, the other through a long-standing catalog.
Spirit Halloween's report includes horror as a broad category and horror-branded apparel as a separate trend. That makes the horror section of the market wider than the single Pennywise entry suggests. Shoppers can pick a specific film villain like Pennywise, a recent horror character like Nikki Freeman or Aunt Gladys, or simply a franchise-branded shirt or hoodie. Each option carries a different amount of effort, and the apparel route is the least demanding.
The top five splits roughly into two groups by average cost. Nikki Freeman at $27.23 and K-Pop Demon Hunters at $41.15 sit at the affordable end, while Dolly Parton at $55.65 and He-Man at $78.43 sit at the expensive end, with Pennywise at $48.96 in between. Cost here reflects how much of the look must be bought as a set versus assembled from items already owned. Lower cost does not automatically mean lower recognizability.
A useful way to choose is to separate costumes by how much reading they require. Pennywise, K-Pop Demon Hunters and Dolly Parton are instantly identifiable from a distance because of hair, makeup and silhouette. Nikki Freeman depends on familiarity with *Obsession*, and He-Man depends on recognition of Masters of the Universe. If your event is a mixed crowd, the first group communicates faster.
Group and family costumes appear repeatedly in the 2026 coverage. Spirit Halloween's report names Toy Story family sets with Woody, Buzz, Jessie and Slinky Dog, and the Pokémon trio of Ash, Misty and Brock works the same way. The Odyssey pairing of Odysseus and Penelope covers couples, and Greek mythology armor scales to larger groups. Shared themes spread the cost of props across several people, which is why family sets recur in retail trend reporting.
Where the sources disagree, the disagreement is mostly about method rather than fact. Mentalfloss.com ranks by monthly Google search volume, which favors long-established characters like Wednesday Addams and Mario. Spirit Halloween's report groups costumes into micro-trends, which favors clusters like varsity wear and Y2K glam. The Strategist and Costume Wall select editorially, which is why names such as Paul Baker from *Adults*, the New York Knicks and figure skater Alysa Liu appear there.
The sources also indicate which looks are losing ground relative to the leaders. Wednesday Addams and Mario post some of the largest search volumes on the mentalfloss.com table but rank eighth and ninth in its ordered list, suggesting their searches are spread across a wider year rather than concentrated in the season. K-Pop Demon Hunters leads the ordered ranking on the strength of September demand. A high annual total and a sharp seasonal spike are different signals, and the ranking appears to weight the second.
To build a costume from this list, match the choice to the constraints you actually have. Pick Pennywise, K-Pop Demon Hunters or Dolly Parton when instant recognition matters and makeup or wigs are acceptable, since their average costs run from roughly $41 to $56. Pick Nikki Freeman if you want the year's newest horror look at the lowest average cost, around $27, and accept that fewer people will place it. Choose He-Man only if the budget can stretch toward $78 or you can build the armor yourself. If budget and group size both matter, a Pokémon or Toy Story set spreads the spend across several costumes at once.
