The Day Faimly
The pregnant teenage daughter of the Days. She was planning on giving the baby up for adoption in return for a sum of cash.
- Secret Keeper: Regarding the identity of her baby's father.
Wiley's disapproving older sister, she is devoutly religious and has taken it upon herself to look after Pretty Lake's small children now that their parents are dead.
- Secret Secret-Keeper: She knew who the baby's father was, never gave any indication to anyone.
The Lotts Family
Charles Sr. and Dottie, the wealthy parents of the Lotts family, and owners of a significant amount of property in the town of Pretty Lake.
- Screw the Rules, I Have Money!: How Charles Sr. operated even before the virus struck. After the virus struck he just got less subtle.
The arrogant and spoiled scion of the Lotts family, he takes it upon himself to keep peace and order in the town after the virus hits.
- Jerk Jock: At least before the virus. After the virus, he turns more into a Asshole Cop.
Chuck's younger sister, she cares about her family and lives with Down's Syndrome.
Chuck's other sister, what little we know about her so far is that she's dead and possibly a drug dealer.
- Posthumous Character: She died before we got the chance to meet her.
The Creeker Family
The elder of his family, he tries to protect his family in the face of the irresponsible (at best) behavior of his younger brother.
- Heroic Sacrifice: Goes down in a Bolivian Army Ending to keep Chuck alive and as penance.
- Papa Wolf: He knows his brother is a loose cannon, but goes out of his way to protect him.
The younger brother in the family, Ronnie is a rebel without a cause without any sort of rebellion. Or conscience. Basically, he's a violent drug dealer.
- Functional Addict/Addled Addict: He is severely hooked on oxycontin, such that when he decides to go clean, he is in severe pain. He's mostly functional, but his wild behavior is proof that "mostly functional" is mostly not good enough.
- Kick the Dog: After a few episodes in which he got the shitty end of the stick from the unpleasant Lotts family (in the first case deserved because he had stolen a car, in the second undeserved because he hadn't killed Lana), he then sexually assaults and attempts to rape Wiley.
The sister of the family, she appears to be even more responsible and level-headed than Pat.
- Talking Down the Suicidal: Has to do this with Ronnie when the latter is detoxing
The Farm Family
Chuck's Posse
- Bad Cop/Incompetent Cop: They haven't killed anyone. Yet. That's about the best you can say for them.
Other 21&Unders
Wiley's nerdy friend. He's investigating the virus. He's investigating a murder. He's totally pining. For Wiley.
- Just Friends: With Wiley. They made out once. He carries a torch for her. She lets him down hard after he destroys thousands of dollars of her cash.
Adam's teacher at the high school until the virus strikes. Then she's one of the oldest people left alive in the town because she's a few weeks shy of her 22nd birthday.
- Killed Off for Real: One of the few people to get significant characterization before her death; she dies on her birthday.
A guard at the prison that Mark escapes from. She's one of the few genuine authority figures left in town and, at 21, one of the oldest.
A prisoner who killed his own father, he clocked the guard on the head and ventured out into the town.
Chuck's ex-girlfriend, daughter of the former bar owner (now the bar owner herself), one of the few properties in town not owned by the Lotts family.
- Your Cheating Heart: She was cheating on Chuck with Ronnie, which is what provides the latter with his alibi for Lana's death.
Spoiler Character from penultimate and final episode of first season
- Papa Wolf: Comes back to Pretty Lake and exposes his plan to Adam in the hopes of saving the boy's life.
- Well-Intentioned Extremist: Designed the virus that was loosed on Pretty Lake. However, he didn't release it. That was the work of someone else in his little cabal.