Popular alien character costume ideas for Cosplay and Halloween

Optimus Prime’s costume is a long-sleeved red T-shirt, gray pants, a painted cardboard body, arms and legs, Optimus Prime gloves, stickers, a mask and a blaster.

Nibbler’s costume is a black onesie, yellow shoes, a white diaper, a red cape, fake fangs, and use EVA foam to create his third eye.

Roger’s costume is a grey top, grey pants, grey gloves, and a Roger mask made from EVA foam and acrylic paint.

Raichu's costume can be recreated with a DIY mask, an orange hoodie, and paw slippers.

The DIY Salad Fingers costume features three long foam fingers on each hand, a mask, a green sweater, and a pair of blue pants.

The Space Cowgirl look can be recreated by wearing a silver top styled with a neon pink hat, bandana, and boots. The Space Cowboy look features a space suit with a neon hat and pair of boots, too.

Blackfire’s costume is a purple crop top, a purple mini pencil skirt, a metallic silver leotard and leggings, and a long purple wig.

The Tusken Raider can be recreated with a mask made from a balaclava or ski mask styled with a bottle cap near the mouth and a pair of round goggles. Then, wear a sand-colored robe styled with a harness. Carry a spear to complete the outfit.

Barbarella wears a metallic yet sexy space suit with a sleeveless top, shorts, and boots.

Diva Plavalaguna’s costume is a light blue long-sleeved maxi dress, a black bib collar necklace, a black choker, black bracelets, and a light blue belt with small side pouches.'

Jean-Baptiste Emanuel Zorg wears a green shirt under a striped vest with matching pants. He has a bald spot on his head and a mini moustache. He also carries a large gun.

Heatblast’s costume is a one-piece red bodysuit with yellow lava markings, yellow gloves, and yellow sneakers.

Four Arms’s costume is a white T-shirt with pronounced black linings, black pants, and black half finger gloves.

Dr. Zoidberg’s costume is a sea green coat with green scrub pants, a white lab coat, and green flip flops.

Addison Wells' costume has a pink and white Seabrooks cheerleading outfit, blonde wig, and white sneakers.

The Monstars costume can be recreated with a muscle shirt and the Monstars basketball jersey.

Bumblebee's costume can be fun for kids with a special jacket or pajama printed with the Transformer's design. You can also wear a costume set.

The CDA's costume features a yellow hazmat suit. You can elevate the costume with a DIY box as headpiece featuring the buttons and tubes on the CDA's upper body design.

Fred’s costume is a blue hoodie onesie, different colored fleece fabric for various details, light blue claw slippers, black gloves, and a tail.

Pearl's costume features a Tiffany blue tank top with a sash, a pair of yellow shorts, peach-colored socks, and blue shoes. She also has a gem on her forehead.

Jabba the Hutt ’s costume needs foam rubber, fastbond contact adhesive, spandex, and textile paint.

The alien in Area 51 takes great attention thanks to it's cool dual-entity part of an alien carrying a human. Another variation features an alien wearing a prison outfit.

E.T.’s costume is a red hoodie, denim pants, and his bike has a white crate where ET is hidden under a white blanket.

For Miss Martian costume, wear a green body suit and green face paint to nail her skin. And then get a white shirt with red markings and navy skirt. Top it off with boots, gloves, and an orange wig, too!

Predator’s costume is a full body suit, armor, and a helmet created to look as close to the character as possible.

Ellen Ripley & Alien’s costumes are the standard USCSS Nostromo uniform which consists of a green shirt, white button down, and grey coveralls with patches, and a black skeletal body (made from a bodysuit and EVA foam) and a large, oblong-shaped head with wide open jaws.

Captain Planet costume is a planeteer-inspired tee and wear it as a cropped top then get your upper body in a layer of bluish grey body paint. Wear blue tights under red trunks, too. Complete the costume with a pair of red gloves and red boots.

Mantis’s costume is a sleeveless green turtleneck, and sleeveless green vest, green fingerless gloves, black pants, and black boots. Mantis can sense and manipulate feelings because she is an empath.

Martian Manhunter costume is a blue cape, blue trunks, and boots. He has green skin and a red strap all over his torso.

To recreate Marvin the Martian's costume, be sure to get a cap or green helmet inspired by his design. Then wear red long sleeves and pants and add green cloth as a skirt. Wear white gloves and sneakers.

Yip Yips costume consists of a fluffly blanket, black mesh, and a pair of eye-ball headbands

The Martians or Little Green Men costume involves a blue shirt with a pizza planet logo paired with blue pants. Wear blue shoes as well as a purple neck accent. Then wear a three-eyed hat and green gloves.

Jarjar's costume consists of an alien mask, a dark tank top and matching pants, with a cloth wrapped on his waist.

Dressing up as a teletubby is a fun way to get a blast from the past! And it’s super easy! All you need is to dress up in your fave teletubby’s color, have a headband with their respective antenna on it, and aluminum foil

Klingons costume is mostly like humans, they have a lot more extra organs. But the most obvious difference is their forehead and wearing war armor.

Hellboy’s costume is two horn stumps on his head a red forked tail. He wears a black shirt, a beige trench coat, black cargo pants, and black boots.

The coneheads costume consists of a striking cone-shaped head piece. Their clothing in the show is mostly normal with Beldar wearing office-ready clothes. While Prymaat and Connie wear more casual clothing.

Jake Sully and Neytiri appear in an all-blue skin which can be recreated with a bottle of blue body paint or full body bodysuit. Decorate the blue skin with a darker shade of blue for the tiger stripes. They also have brown loin cloths and around the arms and legs. Wear long wigs accordingly.

The Thing Costume is a T-shirt, a dark winter puffer coat with hood, dark cargo pants, a winter mask, winter gloves, and winter boots.

Skeletor costume has a skull for a head which is dressed up by a purple hooded chest armor. He also wears dark purple boots and his skin color is a lighter purple as well