Jack Frost

Each Guardian was once an ordinary living being, but at some point sacrificed themselves to save a child, for which they were reborn as a Guardian. Guardians are spirits, making them effectively immortal. They also don't require food or sleep, although they may eat or take a nap. It's important for each Guardian to have children believe in them. The more children believe in a Guardian, the stronger they are. If too few children believe in a Guardian, they will become greatly weakened.

Sandman (Sandman) is the Guardian of Dreams and founder of the Guardians of Dreams. He is short and has a soft, plump body. His hair and clothing appear to be woven from golden sand. His hair is short and spiky, and his eyes are large and golden. He seems to glow, and golden sand constantly sparkles around him.
The Sandman doesn't speak, instead creating golden sand images above his head to communicate with his interlocutor. He has a kind, calm, peaceful, and gentle nature. He is very caring towards children, as his job is to give them beautiful and sweet dreams. Despite his gentle nature, he is a fierce fighter: when children or friends are in danger, the Sandman becomes menacing and determined. His sand whips and sand-shaping abilities become true weapons. He is extremely loyal to his friends.
With his magic, he can create golden sand, which gives children good dreams. If someone touches his sand, they will immediately fall asleep. With his golden sand, he can create a wide variety of images: from airplanes to unicorns and much more.

The Tooth Fairy is the Guardian of Memories and the Bottom from Rise of the Guardians. She looks like a human-hummingbird hybrid: her body is human, but she's covered in a multitude of vibrant feathers (mostly turquoise, pink, gold, and purple). Her outfit doesn't look like normal clothing, but rather appears to be woven from feathers. The only exposed skin is on her face and wrists. She has large pink eyes. She has large, transparent wings on her back that flutter rapidly during flight.
The Tooth Fairy is very energetic, speaks and flies very quickly and fussily. She is very emotional and sensitive, devoted to her team. She cares deeply for children and their baby teeth.
Her castle is home to many little fairy helpers, who look like the tooth fairy herself, only much smaller. They are the ones who take baby teeth from under the pillow and replace them with coins. Baby teeth contain childhood memories, so the Tooth Fairy guards them carefully. In battle, she uses katanas.

The Easter Bunny is the Guardian of Hope, responsible for the Easter holiday. He is an anthropomorphic rabbit with thick, gray-blue fur. He has green eyes and a sharp, alert gaze. He has a muscular, toned build and is as tall as a tall man. He wears leather bracers with orange trim on his front paws. He carries enchanted boomerangs, which he throws with precision at his enemies.
The Easter Bunny is a pedant and a perfectionist. He takes Easter preparations very seriously. Every egg must be perfectly painted and hidden. He is proud and stubborn. He doesn't like to give in and can hold grudges for a long time. He speaks frankly, which can make him seem rude, but he is truthful. The Rabbit is devoted to his work and his friends. In case of danger, he will be the first to rush into battle to protect what is dear to him. Despite his stern appearance, he truly cares for children and his fellow Guardians.
The Easter Bunny travels through underground tunnels. When the tunnel entrance closes, a small flower appears in its place. He often argues with Severyanin about which holiday is more important: Christmas or Easter.

Santa Claus, aka Nick Severyanin, is the leader of the Dream Guardians and the Guardian of Miracles.
The northerner is quite tall and muscular, a bit overweight. He has shoulder-length white hair and a voluminous white moustache. He has bright blue eyes. He wears a red shirt, a belt, and what look like black Cossack trousers. When he's out, he wears a black down hat and a long red fur coat with a fur lining.
The Northerner is combative, demanding, and impulsive—he can act abruptly, without always weighing the consequences. At the same time, he possesses a deep kindness: he is often described as a "warrior with a heart of gold." The Northerner believes in miracles. He possesses a childlike spontaneity and a sense of humor. He is also capable of deep caring and kindness.
The Northerner lives at the North Pole in his castle with yetis and elves. There, gifts are created around the clock for all the children of the world. In the center of the castle is a large globe, on which lights mark all the children who believe in the guardians. The Northerner travels on a sleigh pulled by flying reindeer. He also uses glass balls to create portals for quick travel.

Pitchfork has existed since ancient times, instilling fear of darkness in people and tormenting them with his nightmares. However, with the advent of the Guardians, he began to lose his powers because people stopped believing in him. He hates the Guardians because people believe in them but not in him. He wants to make children stop believing in the Guardians, which would significantly weaken them, allowing him to destroy them and plunge the entire world into eternal darkness.
Pitch Black controls darkness and can literally dissolve into it. He sends nightmares to people. Over time, he learned to transform Sandman's golden dreams into nightmares, allowing him to create minions.

The Pitchfork (or Boogeyman) is the Guardians' main enemy, the Nightmare King. He embodies darkness, fear, and nightmares. He appears as a tall, thin man with a pale gray face. He has golden eyes and black hair that is slicked back and sticks out like spikes. He wears a solid black coat that seems woven from darkness.
Pitchfork is a spiteful, sarcastic, and despotic individual toward the other guardians. He is manipulative and enjoys tormenting children in their sleep with his nightmares. He is willing to take drastic measures to achieve his goals.

Jack was once an ordinary mortal boy who lived in a small village in the 1700s. He had a mother and a younger sister. Jack always tried to cheer everyone up and make them laugh; he was a kind boy.
One day, he and his sister went skating on the lake, but the ice was thin and began to crack, trapping Jack's little sister. The boy calmed his sister and managed to carry her to safety with a long stick, but he himself fell through the ice and died. Moonface, seeing Jack's self-sacrifice, revived him, granting him the ability to control snow and transforming the stick Jack used to save his sister into a magical staff. Later, it was Moonface who nominated Jack as the new guardian.

Jack Frost appears to be a 17-year-old boy (though he appears much older) with pale skin, tousled short white hair, and bright blue eyes. He wears a blue hoodie, the top of which is decorated with snowflakes, and brown pants. He wears no shoes. Jack carries his staff, a long stick with a hook-shaped branch.
Jack acts like a cheerful and carefree teenager. He's kindhearted and mischievous. Before officially becoming a guardian, Jack often organized "snow days" for children, where they could have fun playing in the snow. Although Jack was saddened by the fact that no one (except the guardians) could see him because they didn't believe he existed, he still wanted them to believe in him out of acceptance and love, not fear. After the battle with Pitchfork, when many children began to believe in him, Jack realized the importance of the guardian role and agreed to become one. Jack is the guardian of fun.
Jack's ability is to control snow and fun. Using his staff, Jack can create and manipulate snow, ice, and blasts of cold air. He can also fly. Jack can enchant a snowball, infusing the person it hits with a desire for fun.