On the beginning there were only three of them, they survived the crash and woke on the new unfamiliar land.
First who woke up was Sarah, 24 years old scientist. She was the smartest on the whole ship, but she was also a good shooter and fascinated with art of construction.
She may look like perfect survivor but don't get fooled by the first impression. Sarah has also her dar side. She is bloodlust. View of blood is nothing unusual for her. She likes hunting, that's why she learnt how to shoot. Other colonist must be careful. It is possibility that she will start a social fight.
Besides that she is worst cook I've ever seen. Don't let her close to the kitchen... never.
