Jason's friends – Liza, Daisy, Keith, Oliver, and Riley – are the reason he's on the islands, and rescuing them is his primary motivation. They represent his connection to his past life. Dennis Rogers is a Rakyat warrior who guides Jason early on. Dr. Earnhardt is a eccentric botanist who provides medical aid and information. Willis Huntley is a CIA agent who offers missions and insights into the larger geopolitical conflict. These characters provide support, missions, and narrative depth, reminding Jason of what he's fighting for and the world he left behind.
