Halloween calls for costumes — and an even happier Halloween may mean pets are joining in on the fun.

Fox News Digital readers and staff members submitted images of family pets sporting their trick-or-treating best, from cats and dogs transforming into Santa Claus, insects, superheroes and more.

See the adorable images and fun facts about some of these pets below.

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Pompeii

Pug dresses as flower for Halloween

Pompeii the pug is dressed as a red flower for Halloween 2022. (Nikolai Gionti)

Pompeii, a pug from Cleveland, Ohio, impressed plenty with her flower costume this Halloween.

Baker and Aspen

Baker and Aspen

Baker (left) and Aspen (right) are all dressed and ready to celebrate Halloween 2022. (Carly Ford)

Baker, a mini golden doodle, is dressed as a cowboy while his pal Aspen, a black lab, is dressed as a scary shark.

Teddy

Dog dressed as dinosaur for Halloween

Teddy of Mohegan Lake, New York, is dressed as a dinosaur. (Carol, New York)

Teddy, a hava-malti-poo from New York, is energetic and a social butterfly who loves everyone he meets, his owner tells Fox News Digital.

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Alice

Alice the dog is dressed as a lion

This Halloween dog — a golden retriever named Alice — struts her stuff as a lion. (Tyra, New York)

Alice, a cuddly and friendly golden retriever from New York, is dressed in a lion costume.

Parker

Parker the cat on Halloween

Parker, a five-year-old tabby cat from West Islip, New York, is photographed on Halloween. (Devin Bodurian)

Parker, a cat from New York, dressed as a convict for Halloween 2022. 

His crime for being a "bad pet"? Biting! 

Quinn

Dog dressed as bee

Quinn, a two-year-old long-haired chihuahua, poses for the camera on Halloween 2022 — dressed as a bumblebee. (Debbie W.)

Quinn, a long-haired chihuahua, is "the happiest little girl" and spreads love everywhere she goes, according to her owner.

Zion

Golden retriever dresses for Halloween

Zion, a golden retriever from Indianapolis, is dressed in a comfy panda costume. (Gil Maloney)

Dog wears banana costume

Zion the dog eats a banana while dressed as a banana this Halloween (Gil Maloney)

Zion is a golden retriever from Indianapolis, Indiana — and he is a banana and a panda this Halloween.

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Chino

Chino the dog dressed as Santa

Chino the yorkie wears a Christmas outfit for Halloween — his owner loves the holiday season! (Gabriele Regalbuto)

Chino the yorkie of Cleveland, Ohio, is in the Christmas spirit this Halloween as he dons the classic red suit of Santa Claus.

Oona and Wendell

Oona and Wendell Halloween 2022

Oona (left) and Wendell (right) are all dressed up for Halloween in South Carolina. (Tom D/South Carolina)

Oona, 2 and Wendell, 10, both golden retrievers, pose for their photo on Oct. 31, 2022.

Oona is dressed as a watermelon — while Wendell sports a dinosaur costume.

Boomer

Boomer the dog

Boomer poses in his North Carolina home while wearing a Bruins hockey jersey. (Matt and Alexa Reilly)

Boomer the dog on Halloween

Boomer, a three-year-old mixed breed, is wearing a Bruins hockey jersey to support his favorite team amid Halloween and all year round.  (Matt and Alexa Reilly)

Boomer is owned by a pair of married Boston Bruins fanatics — so he wears a Bruins jersey every year on Halloween to support his ice hockey team. 

Boomer cheers his team on from his home in Apex, North Carolina.

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Sinatra

Sinatra dressed as an elf

Sinatra licks his lips as he poses for the camera on Oct. 31, 2022. (Susie Joseph)

Sinatra, an American bully, is dressed in an elf costume while celebrating at home in Cleveland, Ohio.

Louis

UPS dog Halloween

Wearing the signature brown uniform, Louie the dog is dressed as a UPS worker for Halloween. (Alison Nemecek)

Louis is a cavachon from Seven Hills, Ohio. 

This year, Louis is dressed as a UPS delivery worker.

Ollie

Ollie the dog

Ollie, a dog from New York City, is ready for Halloween dressed as a blue shark. (Amy Lewis)

Ollie the dog in a shark costume

Ollie is a mini goldendoodle who lives in Manhattan. In this photo dated Oct. 31, 2022, Ollie hides under his shark Halloween costume. (Amy Lewis)

Ollie is a 16-week-old mini goldendoodle who lives in Manhattan. 

Ollie wore a soft, blue shark costume this Halloween.

Noki

Noki the dog

Noki the dog glances at the camera while dressed as a lion this Halloween. (Nick LaMonica)

Noki of Chicago, Illinois, is a cavapoo. Noki is dressed as a lion for Halloween.

Molly

Molly as Cookie Monster for Halloween

Molly, a dog from New York, is sporting a blue Cookie Monster costume from the children's show, "Sesame Street." (Amy K.)

Molly, a sweet and vocal dachshund from Upstate New York, is dressed as Cookie Monster for Halloween — complete with a chocolate chip cookie.

Phoebe

Chihuahua Halloween

Phoebe the chihuahua poses with her paws crossed on Halloween 2022 in her Cleveland home. (Kylie Turner)

Phoebe is a chihuahua from Cleveland, Ohio. 

Pheobe is wearing a sombrero and a colorful poncho.

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Storm

Storm the superhero dog

Storm is an energetic, happy German shepherd puppy from New York. (Judy Posimato)

Storm dressed in hero costume

Storm stands outside her New York home on Oct. 31, 2022. (Judy Posimato)

Storm, a German shepherd, is from Long Island, New York. 

Storm is very energetic. She loves to spend time outdoors and chase after bugs, her family tells Fox News Digital.

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Cats dressed as pumpkins for Halloween

Rusty (left) and Simba (right), from West Sayville, New York, lie in a pile of Halloween candy while dressed as pumpkins. (Nikki Spalma)

Rusty, 5, and Simba, 4 — cats from New York — wear pumpkin pet costumes for Halloween.

Bentley

Dog dressed as superhero for Halloween

Bentley the dog stands outside in Pittsburgh while posing in a superhero pet costume. (Koryn Bender/Preston Vigna)

Bentley, a black lab/rottweiler mix from Pittsburgh, Pennsylvania, is also dressed as a superhero this Halloween.

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Boomer

Boomer dressed as a cowboy

Boomer is seen on Halloween 2022. He's a two-year-old mixed pup from Chicopee, Massachusetts. (Paris Tanner)

Boomer, a mixed pup from Massachusetts, is dressed as a cowboy for Halloween — complete with a hat and bandana.

Mully

Mully as Buzz

Mully, a five-year-old mixed pup from Chicopee, Massachusetts, poses in her Halloween costume. (Paris Tanner)

Mully, a mixed-breed dog also from Massachusetts, poses in a Buzz Lightyear costume from the "Toy Story" movie franchise.

Milo

Dog dressed as hot dog

Milo is a three-year-old havapoo from Rutherford, New Jersey. (Kaitlyn Germain)

Milo, a havapoo (havanese poodle) from New Jersey, is dressed up as a hot dog with mustard for Halloween.