Fiona Tarsis
One of the main characters of the book, Fiona has access to the cure that can revert the beasts from the pandemics. After bringing her brother Jonah back, she sets forth to spread the cure to the entire south side of the wall.
Jonah Tarsis
This character is Fiona's twin brother. Fiona turns him back from a beast after finding him in the first book "Stung". Along with Fiona, they set out to find their mother and spread the cure.
Bowen
Bowen is Fiona's lover and ex-militia. In the first book he is the one that takes care of Fiona while she is trapped with the militia. After running away with Fiona, he accompanies her on the quest to find her mother.
Jacqui
Jacqui is a former classmate of Fiona. In the first book, Jacqui is the one that saves Fiona from starvation by providing her with peanut butter crackers. After Fiona gets access to the cure Jacqui seeks out Fiona after the Raiders end up coming near her house. Jacqui accompanies the group to Wyoming.
Kevin
Kevin in the questionable ally the characters make near Wyoming on the quest to find Fiona and Jonah's mother. Kevin is suspect to having connections to the Raiders and the group keeps eyes on him as they journey on. The Raiders want to destroy the cure, and the group does not know if Kevin is in on this as well.
