Salvagers who work the car and computer dumps, scrappers have earned their name as much for their violent natures as their work.
Patrols are the Dalton police force, tasked with both keeping the peace inside the city and protecting it from outside forces.
Em feels like the invisible member of her family and has retreated into her own world as a result.
Roof runners own the top of the Blue, but the streets are home to a similar network of children and young adults, the street fighters.
Escorts are legal Mixed prostitutes, often forced into a hard life by desperation. Many have found ways to try to support each other and make a difficult life a bit more bearable.
Jabe is a Mixed patrol officer whose intimidating looks belie a heart as big as he is, and who will do anything to protect the people he cares for.
Rae, a roof runner and the youngest member of Anja's group, is an eternal optimist whose fascination with the protestors stems from their passion and eloquence rather than their actual goals.
Anja's partner, Deana, shares her passion for change, but has a different vision of what is necessary to achieve it.
Ellie and Tess share more in common than they think, but Ellie is determined to keep her daughter from living with the same regrets she has in her own life.
The young roof runners of the Blue have their own culture, their own rules, and even their own language.