Sha-Ming stands at about 6'2, wearing mostly black save for the goggles and his glasses. He has a serious problem with authority. He has high stealth, performance, and charm. He does anything he has to in order to survive.

he is a Gnosia

The Gnosia (children of Gnos) have one goal: to eradicate humans.

Each loop (where the crew sleep), the Gnosia eliminates one human at a time. 

You can choose whichever role you want: Gnosia, Engineer (who can use the technology on the ship to determine who is a Gnosia), Doctor (investigates those sent for cold sleep), or Crew.