Mario and Luigi Duo Costumes for Two People

Mario and Luigi make an easy-to-read two-person Halloween costume because the key details are simple and complementary: red versus green, matching overalls, different letter badges, and recognizable caps. They are brothers in the game series, so this is a character-duo concept rather than a canonical romantic couple. Friends, siblings, or actual couples can dress as them without changing who the characters are.

The essential visual comparison

Mario typically uses a red cap and red shirt with blue overalls; Luigi uses a green cap and green shirt with blue overalls. A white circular badge with a red M or green L reinforces the difference. You can create an inspired version without expensive official outfits by keeping these color cues consistent and matching the basic silhouettes.

Build the two looks

Mario: red-and-blue base

Start with a plain red top and blue overall-style layer. Add a soft red cap or headband with a prominent M badge. A simple mustache-shaped paper or makeup detail is optional, but the cap and color block should carry the character. Choose shoes that fit the planned event rather than copying every game detail.

Luigi: green-and-blue base

Repeat the overall-style layer with a green shirt and green cap bearing an L. Luigi is often represented with a slightly taller silhouette, but you do not need to change height to make the costume work. Prioritize a clear green cap and matching shirt over subtle differences in trouser cut.

Create the two badges

Cut two white circles from felt or sturdy paper and place contrasting letters in the center. Attach them to the caps using a method appropriate for the material, leaving the cap comfortable to wear. The letters are your most reliable distinguishing detail in group photos where the overalls look identical.

No-overalls alternative

If you have no overalls, wear blue trousers with blue suspenders or a vest-style layer over the red and green tops. This reads as a simplified costume, especially when the lettered caps are strong. Keep both outfits at the same level of approximation so neither person looks unintentionally unfinished.

Accessory-light version

You can make the duo work using colored shirts, badges, and matching sneakers. Optional gloves or plush star-shaped props add charm, but they are not required. Avoid hard or oversized toy props when the venue is crowded; the recognizable wardrobe should do most of the work.

Photos for friends or romantic partners

Pose with arms folded, hold small matching game-inspired icons, or simply stand together so the red and green contrast is visible. Couples can personalize their photo without changing the characters' relationship in the games. Siblings and friends can use the same outfits with no alterations.

Assemble the pair efficiently

Lay the red and green outfits side by side, then match the blue layers. Make and attach the M/L badges before preparing any optional accessories. Have each person put on the complete look and check the cap from front and side views. If the shirts and caps are correct, most people will recognize the pair even if the overall details are simplified.

Avoid the most common mix-ups

Swapping badges accidentally is an easy mistake if both caps were made together. Keep Mario's letter with the red pieces and Luigi's with the green pieces throughout the build. This page focuses on a named two-character outfit, while the general duo guide helps people who have not chosen characters yet.

Before you leave: a quick check

Mario uses red and M; Luigi uses green and L.

Both outfits use consistent blue overall-style layers.

Badges are readable and securely attached.

Costumes work without oversized props.

Continue with a related guide

For a broader starting point, Duo Halloween Costumes for Friends, Siblings and Coworkers explains the related choices without replacing the details of this guide.

If you want a different approach, Couples Halloween Costume Ideas by Theme, Budget and Effort explores the other approach in more depth.