14 Group Halloween Costumes That Work for Any Group Size

picking a group Halloween costume is like herding cats. You’ve got one friend who wants to be “sexy something,” another who refuses to spend more than $5, and someone else who doesn’t even like costumes (why are they even here?). Sound familiar?

I’ve been there—multiple times. One year my group tried to pull off “The Avengers,” but half the squad bailed and we ended up looking more like random extras. That’s when I learned the golden rule: choose a costume idea that works no matter how many people show up.

So, if you’re stressing about finding the perfect group Halloween look, relax. I’ve rounded up 14 group Halloween costumes that work for any group size—whether there’s two of you or twenty. Ready to get spooky? Let’s roll.

1. Classic Ghosts 👻

You can never go wrong with the bedsheet ghost look. Cheap? Yes. Iconic? Absolutely.

All you need: old sheets, scissors, maybe sunglasses if you want to spice it up.
Works for: couples, squads, or literally your entire neighborhood.
Bonus: If someone shows up last minute, just throw another sheet on them. Done.

Ever noticed how everyone looks instantly hilarious as a ghost? That’s the beauty of it.

2. The Scooby-Doo Gang

Here’s a crowd-pleaser. Everyone knows them, everyone loves them.

Core characters: Fred, Daphne, Velma, Shaggy, Scooby.
Extra people? Make them ghosts, villains, or random townsfolk.
Easy DIY: thrift store finds + one Scooby onesie.

IMO, this one’s perfect if you’ve got a mix of costume-enthusiasts and “I’m-just-here-for-the-candy” types.

3. The Addams Family

Creepy? Check. Spooky? Check. Flexible? Double check.

Essentials: Gomez, Morticia, Wednesday, Pugsley.
Add-ons: Cousin Itt, Uncle Fester, Thing (literally just a hand).
Extra-large crew? Just go as “extended Addams cousins.”

This group look oozes Halloween vibes without requiring too much effort.

4. Mario Kart

I swear, I’ve never seen a Mario Kart group that didn’t steal the show.

Characters: Mario, Luigi, Peach, Toad, Bowser, Yoshi.
Props: DIY cardboard cars with suspenders.
Big group? Add Koopa Troopas, Bullet Bills, or random bananas.

Pro tip: If someone shows up late, make them a banana peel. They’ll hate you, but the crowd will love it. ;)

5. Men in Black

Want low effort but maximum impact? Boom: Men in Black.

Outfit: black suit, white shirt, black tie, sunglasses.
Gender-neutral, budget-friendly, instantly recognizable.
More people? Just say you’re the whole agency.

Plus, you can carry toy alien guns and say “We’re here to protect you from yourselves.”

6. Pac-Man and Ghosts

This one’s retro gold.

Core cast: Pac-Man + Blinky, Pinky, Inky, Clyde.
Large group? Add more ghosts or fruit.
DIY factor: cut out circles from poster board or use cardboard boxes.

It’s easy, fun, and instantly brings out everyone’s inner gamer.

7. Toy Story Crew

Perfect if your group has wildly different levels of costume commitment.

Must-haves: Woody, Buzz, Jessie.
Casual folks: aliens (green shirts + antenna headbands).
Big group? Add Hamm, Rex, or even Forky.

I once dressed as an alien with just a $3 headband and got more compliments than my friend who spent hours on Woody. True story.

8. Harry Potter Characters

Wizard robes? Scarves? Wands? Easy win.

Main crew: Harry, Ron, Hermione.
Add-ons: Professors, Death Eaters, Hagrid, even Moaning Myrtle.
Large groups: split into Hogwarts houses and flex your loyalty.

FYI: There’s always that one person who insists on being Voldemort. Let them—it’s a power move.

9. Superheroes Assemble

Marvel, DC, or mix-and-match—it doesn’t matter.

Core group: pick the Avengers, Justice League, or both.
No rules: literally any hero (or villain) works.
Add-ons: civilians or reporters if you’re low-effort.

Let’s be real—this option covers everyone. Got five people? Great. Got fifteen? Even better.

10. The Wizard of Oz

Old-school, but still a crowd favorite.

Essentials: Dorothy, Scarecrow, Tin Man, Lion, Wicked Witch.
Add-ons: flying monkeys, munchkins, Glinda the Good Witch.
Big group hack: munchkins are the easiest to pull off—just colorful outfits.

Pro tip: Carry a stuffed Toto. People will ask to pet it. Every. Single. Time.

11. Deck of Cards

Honestly, this one’s genius.

Easy DIY: white shirts with card symbols drawn on.
Flexible: two people = pair of cards; big group = full deck.
Low cost: markers + cardboard crowns for royalty.

It’s creative, customizable, and nobody gets left out.

12. The Simpsons

Yellow face paint = instant recognition.

Core: Homer, Marge, Bart, Lisa, Maggie.
Add-ons: Moe, Krusty, Ned Flanders, Mr. Burns.
Bonus: If you’ve got 20+ people, Springfield is huge. Go wild.

Also, walking into a party as Comic Book Guy is low-key the funniest thing ever.

13. Rock, Paper, Scissors (and More)

Hear me out. Start with the classic trio: rock, paper, scissors. Then expand.

Add-ons: lizard, Spock (yes, Big Bang Theory style).
Even bigger? Just add more paper/rocks/scissors—nobody cares.
DIY factor: cardboard, paint, duct tape.

This one always gets laughs because it’s so ridiculously simple.

14. The “Anything But Humans” Group

This one’s for the chaotic energy squads.

Theme: everyone picks something non-human (aliens, animals, robots, monsters).
Zero rules = max creativity.
Perfect for groups of all sizes, because literally anything counts.

Last year, my group did this, and one guy showed up as a literal traffic cone. Guess what? He was the life of the party.

Final Thoughts

So, there you have it: 14 group Halloween costumes that work for any group size. Whether you’ve got two people or twenty, you now have a list of ideas that won’t collapse if someone flakes (which they definitely will).

Here’s my advice: don’t overthink it. Pick something fun, easy, and flexible. At the end of the night, nobody’s giving out Oscars for Best Costume—everyone just wants candy, laughs, and an excuse to act ridiculous.

And hey, if all else fails, grab a sheet and be a ghost. It never disappoints. :)