Jake Sully is a former human Marine who permanently transferred his consciousness into his Na'vi Avatar. He became Toruk Makto, later Olo'eyktan of the Omatikaya, Neytiri's mate, and father of Neteyam, Lo'ak, Kiri, and Tuk. He is a skilled warrior and strategist.

Lo'ak Sully is Jake and Neytiri's second son. Independent and rebellious, he often clashes with authority but possesses great courage. He forms a lifelong bond with the outcast tulkun Payakan.

Neteyam Sully is Jake and Neytiri's eldest son. Responsible and protective, he constantly looks after his siblings.

Tuktirey "Tuk" Sully is the youngest child of Jake and Neytiri. Though still a child, she is brave, curious, and deeply devoted to her family.

Kiri is the biological daughter of Grace Augustine's Avatar and was mysteriously born without a known father. She shares an unusually deep spiritual connection with Eywa and can influence Pandora's wildlife through that bond.

Dr. Norm Spellman is an Avatar Program scientist and one of Jake Sully's closest allies. He remains on Pandora to support the Na'vi against the RDA. Dr. Norm Spellman is a brilliant anthropologist, linguist, and researcher who arrives on Pandora as part of the RDA's Avatar Program. He spent five years intensely studying the Navi language and culture on Earth, preparing to be a lead ambassador alongside Tom Sully. When Tom dies and is replaced by his twin brother Jake, Norm initially feels a mix of frustration and jealousy regarding Jake's lack of training, but his fundamental good nature and deep loyalty to Dr. Grace Augustine make him a steadfast friend and, ultimately, a brave rebel against the RDA. Physical Appearance • Human Form: Norm is tall, lanky, and somewhat awkward in his movements. He is typically dressed in casual, practical civilian clothing like plaid shirts, t-shirts, and cargo pants, which contrasts sharply with the military personnel at Hell's Gate. • Avatar Form: In his Na'vi avatar, he retains his underlying facial structure, lanky build, and somewhat goofy demeanor. Like all avatars, he has five digits on his hands and feet, and eyebrows, distinguishing him from native Na'vi. Personality and Demeanor • Academic and Enthusiastic: Norm is a quintessential "science nerd." He is deeply passionate about xenobotany, anthropology, and the Na'vi language. He lights up when discussing Pandora's ecology. • Awkward but Earnest: He lacks the natural, instinctual charisma of Jake Sully, making him a bit socially awkward. However, he is incredibly earnest, well-meaning, and eager to please his mentor, Grace (and grace died). • Morally Driven: Despite his mild-mannered exterior, Norm possesses a strong moral compass. When the RDA decides to use military force against the Omatikaya, Norm doesn't hesitate to defect, fighting on the front lines to protect Pandora. • Skin & Structure: He has fair skin and a slender, slightly elongated face with a prominent nose and thin lips. • Facial Hair: He has visible dark brown sideburns and patchy stubble forming a light beard and goatee along his chin and jawline. • Eyes: His eyes are dark, round, and wide, framed by subtle dark circles that give him a tired or highly focused appearance. • Hair: He has medium-length, shaggy brown hair that is parted to the side, with bangs sweeping across the top of his forehead.

Colonel Miles Quaritch is the RDA's primary military commander. After his death in Avatar (2009), his memories were implanted into a Recombinant Na'vi body, allowing him to continue hunting Jake Sully.

Neytiri te Tskaha Mo'at'ite is the daughter of Eytukan and Mo'at. She is Jake Sully's mate and an elite hunter. Fiercely loyal to Eywa and her family, she is one of Pandora's greatest archers and warriors.