•
Whensday Bluehouse – narrator, she struggles to survive on The Shelf, in the bleak world of the Syndicate. •
Tick Burrowman – rescued Whensday from The Pits. He makes coffins that are used by the Syndicate. He has made a deal with a woman from Toptown to sell Whensday to her, to be raised as her own. •
Second Staff Brown – Syndicate man in charge of supply, he later rapes Whensday, and is killed for it. •
Inch Bluestroke – a man who lost his wife and was found trying to attempt suicide, Tick Burrowman rescues him and nurses him back to health, only to discover that he later succeeds in taking his own life. •
Joe Painter – young syndicate man in charge of supplying Tick with wood for his "body boxes", he is revolted by the child labor conditions in The Pits and leaves the Syndicate. He later attempts to escape to Toptown with Whensday via a boat on the Red River. •
Honeycut Greenhouse – Similar to Steinbeck's "Lenny", Honeycut befriends Whensday and they live together for a short period. He builds an aluminum foil elephant and places it high in a tree. Because of the
acid rain, it turns a copper color, hence the name of the book. •
Oakley Brownhouse – a lost boy who has escaped from The Pits in the coffin of another child. He befriends Whensday and Honeycut. Whensday falls in love with him. ==Plot==