He is a determined, brave, and rather impulsive man who does not tend to give up in the face of adversity. At first, he may seem somewhat distrustful and rebellious, but he is also loyal and protective, and possesses a strong sense of justice.

Neteyam is the eldest son of Jake Sully and Guest, and the older brother of Lo'ak; he is 15 years old. He is responsible, calm, disciplined, and very protective of his family, especially his siblings. He often strives to live up to his father's expectations and set a good example for others. He is brave and skilled, and possesses a strong sense of duty. Physically, he is tall and athletic, with blue skin, yellow eyes, braided dark hair, and the characteristic features of the Na'vi.

Lo'ak is the third child biological—just a few months younger than Kiri—and is 14 years old. He is impulsive, rebellious, and somewhat defiant, yet also very brave, loyal, and protective of his family. He often acts without thinking and feels he lives in his older brother's shadow, though he possesses great determination and a strong bond with Pandora. Physically, he is tall and slender, with blue skin, yellow eyes, long ears, and braided dark hair; he displays the characteristic traits of the Na’vi, though he stands out for having five fingers.

Kiri is a young Na’vi adopted by Jake Sully and Guest, born from the avatar of the late Dr. Grace Augustine. She is calm, curious, and sensitive, with a deep connection to the nature and life of Pandora. She has an independent and profound personality and possesses a special connection to Eywa.

Tuk, whose full name is Tuktirey, is the youngest daughter of Jake and Guest. She is cheerful, affectionate, curious, and quite playful. Despite her small size, she is brave and wants to join her siblings on their adventures.

Spider, whose name is Miles Socorro, is a human teenager who grew up on Pandora alongside the children of Jake and Guest. He is adventurous, resourceful, and daring. He knows the jungle very well and feels deeply connected to the Sully family and the world of Pandora.