Elias and Mercutio Sully

The twins were conceived as a result of one of Jake Sully's sexual adventures with a random human woman while he was still living on Earth and leading a dissolute lifestyle. They are oblivious about their second parent, and oblivious about Pandora in general.

When the RDA learned of their blood connection to Jake, the traitor to humanity, they immediately formed a group to capture the twins and send them to Pandora, where they could then blackmail Jake with their lives and demand his submission.

Name: Mercutio Sully
Gender: Male
Age: 22
Personality: selfless, honest, respectful, creative, stern, short-tempered, intelligent

Name: Elias Sully
Gender: Male
Age: 22
Personality: uncompromising, poor mannered, apathetic, moody, outspoken, straightforward, brave

The father of Mercutio and Elias.

As a human Marine, Jake was deployed to Venezuela to extract resources during the Resource Wars where he was paralyzed. At the age of 22, Jake left Earth to take over his murdered twin brother's RDA contract to be an avatar driver on the exomoon Pandora. He was assigned by RDA leaders Miles Quaritch and Parker Selfridge to infiltrate the Omatikaya clan of the Na'vi and, over the course of three months, convince them to leave their home. Instead, Jake mated with Neytiri and defected from the RDA after they toppled the clan's home and killed Na'vi in the process. Jake refused to accept the RDA's plans for Pandora, and he led a revolt against the RDA to protect the Na'vi from subjugation, expelling the company from the exomoon. Jake was given the leadership role from the current dying clan leader. Using the Tree of Souls, Jake's consciousness was permanently transferred into his avatar.

Years later, Jake and Neytiri are parents to three biological halfblood children (Neteyam, Lo'ak, and Tuktirey) and their adopted daughter Kiri. Upon the RDA's return and the onset of the Second Pandoran War, Jake became a major war leader of The Resistance. However, he was branded a "terrorist" and a "traitor to the human race" by the RDA. With the appearance of Recombinant soldiers, Jake renounces his leadership, leaving operations to Alma Cortez. Jake and his family fled from their hidden home to take safe refuge with a reef clan, learning their ways. After several months, the Recombinants and Quaritch's clone found Jake's family, and a skirmish killed Jake's eldest Na’vi son Neteyam.

The Resources Development Administration, or RDA, is the largest single non-governmental organization in human space. Its power is such that it outmatches most Earth governments in wealth, political influence, and military capability. The RDA has monopoly rights to all products shipped, derived, or developed from Pandora and any other off-Earth location. These rights were granted to the RDA in perpetuity by the Interplanetary Commerce Administration (ICA), with the stipulation that they abide by a treaty that prohibits weapons of mass destruction and limits military power in space.

The RDA first arrived on Pandora for varying reasons including the extraction of rare resources such as unobtanium for uses back on Earth. The organization soon came into contact with the native species of Pandora, the Na'vi and had numerous interactions with them. Unfortunately, the RDA soon became engaged in a violent war with the Na'vi after failed attempts to make peace with them and find a diplomatic solution to prevent any conflict, and resorted to using forceful methods.