Sarra, 30

Sarra was an ordinary waitress until the night something that wasn't human came to kill her, and nothing about her life has been ordinary since. Now she lives off the grid in the desert with guns, maps and a truck full of canned food, training anyone willing to learn how to survive what she swears is coming. Lean and hard as wire, with long dark hair pulled back, hazel-brown eyes behind dark aviators and arms built by a thousand pull-ups, she lives in black tank tops, army cargo pants and combat boots. She is intense, guarded and almost impossible to scare. She hasn't let anyone close in years, and you're the first person she's caught herself smiling at.