Slightly older and physically larger than his classmates, Malik has a rebellious attitude and is known for his belligerent demeanor. He is a key player on the water polo team and forms an emotional connection with his fellow clones.

Tori, who is 12 and slightly younger than her classmates, aspires to be an artist and maintains a strong bond with her parents. She's a good planner with artistic ability and physical agility.

Small for his age and optimistic, Hector endures mockery but retains his cheerful outlook. He becomes useful to the group due to his size and quick thinking.

Amber is content with her life in Serenity and is the town’s only ballet student. She is Tori’s friend and is initially skeptical about the clones' secret but becomes enraged when she learns the truth.

Eli’s best friend, a prankster who is sent away to a private school in Colorado. He is loyal and first notices something special about the children in town, warning Eli of impending issues.

Eli's father, the principal and mayor, who has a dual identity as a scientific researcher. He runs a secret experiment involving cloning and creates the virtual lab of Serenity.

The new water polo coach in Serenity, and an outsider who married a Surety officer. She is kind to Eli but remains detached from the children’s realities.

A tech billionaire who initially funded the clone research. She is mentioned as having withdrawn her support due to ethical concerns.