In Paris, there are some animals who have the ability to transform into human/animal hybrids at will. Most of the time they stay in their animal forms especially when humans are watching. Some are pets others are common strays, either way they posses a great power.
Marinette - A beautiful Turkish Angora cat with fur as white as snow and blue eyes. In her human form she has black hair with blue highlights, fair skin, white cat ears, and a tail. She wears a red mask, a white dress and leggings with a red and black spotted sweater and matching red shoes. She is the sheltered house pet of the baker's wife. She is very polite, kind, a little naive but feisty.
Adrien - A streetwise black alley cat with green eyes. In his human form he has blonde hair, tan skin, black cat ears, and a tail. He wears a black mask, a sleeveless black and green jacket, a black shirt, pants, and sneakers. He's a stray who's lived on the streets for years. He is known as a thief, a scoundrel, and a heart breaker.
Tikki - A friendly and helpful white mouse who lives in the bakery. Although Marrinette is cat, she doesn't eat mice and Tikki is more of confidant than food to her.
Plagg - A mischievous and sneaky grey mouse. He once saved Adrien from a trap and in exchange Adrien agreed not to eat him and be his friend. He loves camembert cheese.
Alya - A sassy cocker spaniel dog with redish-brown fur. In her human form she has long wavy redish-brown hair, dog ears and a tail. She wears glasses, an orange dress, and boots. She is Marinette's best friend.
Nino - A loyal mutt dog with gray fur. In his human form he has black hair, gray dog ears, and a tail. He wears glasses a gray sweatshirt, pants, sneakers, and a cap. He is Adrien's best friend and like him he is also a stray.
Chloe - A spoiled french poodle with yellow fur. In her human form she has blonde hair that is tied back in a ponytail and a poodle tail. She wears a white shirt, yellow scarf, and skirt. She is the mayor's pet and considers herself Adrien's girlfriend.
Sabrina - A ferret with orange fur. She is Chloe's friend and also a pet.
Tom and Sabine - Marinette's kind and loving owners. They love Marinette dearly and would be heartbroken if she was ever gone. They are also kind to other animals including strays which they will leave food for.
Hawkmoth - A greedy baron who will steal nice looking pets and sell them. Marinette becomes his main target for money and Adrien is the one thing that stands in his way of that.
Ivan - a big, tough, but kindhearted bulldog. He has a crush on Mylene and is a stray.
Mylene - a shy light brown bunny who is easily frightened however she always has Ivan to protect her.
Max - an intelligent green parrot who knows how to use a keyboard and other human devices.
Kim - a competitive hare who is considered the fastest pet in town.
Nathaniel - An artistic russian blue cat with red fur. In his human form he has red hair, cat ears, and a tail. He wears a black and white shirt, pants, and gloves. He is a house pet and has a crush on Marinette and doesn't like her being around Adrien who he considers a filthy alley cat.
Lila - A seductive Siamese cat with orange fur. In her human form she brown hair, cat ears, and a tail. She wears an orange shirt and purple skirt. Like Adrien she is a stray and she is very infatuated with him. Though he does care about her he is not interested, she gets very jealous of how close he is to Marinette.