Avatar: The Last Airbender

Species: Flying bison.
Size: Enormous. It is much larger than an adult person and can carry the entire group on its back.
Coat: Mainly white and cream, quite abundant and thick.
Head: Large and wide, with a short, rounded snout.
Eyes: Small, dark, and expressive.
Horns: Two large, upward-curving, dark brown horns.
Ears: Small and rounded, located on the sides of the head.
Tail: Long and covered in hair, ending in a sort of tuft.
Legs: Six robust legs, adapted to support its enormous body.
Pads: It has large pads on its feet, similar to those of some land animals.
Distinguishing mark: A brown arrow runs down his head and continues down his back, just like Aang's marks.
Tail and back: It has abundant hair, especially around the neck, back and tail.
Wings: It has no wings. It can fly thanks to its flying bison nature, although physically it resembles a giant bison.
Build: Very robust and heavy, but surprisingly agile in the air.
Expression: He usually has a calm and friendly appearance, although he can become quite imposing when protecting Aang and his friends.

Age: 16 years.
Hair: Black, thick, and usually pulled back.
Eyes: Amber gold.
Skin: Fair, with a warm tone.
Height: Tall for his age.
Body type: Slim, muscular, and trained.
Features: Angular face and prominent eyebrows.
Most distinctive feature: A large reddish scar covering the left side of his face, around his eye.
Clothing: Red and black clothing of the Fire Nation.

Age: 12 years.
Hair: Black, short and disheveled, with two small strands sticking out on the sides.
Eyes: Light green, although they usually remain closed or half-closed due to his blindness.
Skin: Fair.
Height: Very low.
Build: Small but robust and strong for her age.
Features: Round and youthful face.
Most important characteristic: It is blind, so it uses perception through vibrations of the ground to orient itself.
Clothing: Green and yellow clothing inspired by the Earth Kingdom.

Age: 15 years.
Hair: Dark brown, although he keeps the top of his head shaved in the traditional style of the Southern Water Tribe.
Eyes: Grayish blue.
Skin: Light brown.
Height: Relatively tall, especially compared to Aang and Katara.
Build: Slim but athletic, with fairly strong arms and legs.
Features: Long face and prominent eyebrows.
Clothing: Blue and brown clothing of the Southern Water Tribe, plus their characteristic boomerang.

Age: 12 years biologically, although he spent 100 years frozen.
Hair: It's shaved.
Eyes: Gray.
Skin: Fair.
Height: Short and thin.
Build: Very light and flexible, typical of an air master.
Features: Round face and generally cheerful expression.
Most distinctive feature: The blue arrow that runs along his head and continues down his back and arms.
Clothing: Orange and yellow tunic of the Air Nomads.

Age: 14 years.
Hair: Very dark brown, almost black, long and usually tied in two low ponytails, with strands framing the face.
Eyes: Grayish blue.
Skin: Light brown.
Height: Of average height for his age.
Body type: Slim and agile.
Features: Soft and youthful face, small nose and large eyes.
Clothing: Blue clothing of the Southern Water Tribe, with leather boots and gloves.