[quote=@xinnone]
She isn't terrified of being locked up with other crewmates. Considering that we all have our bad sides, I'd like to assume that everyone on the trip has something that they'd rather not have revealed about themselves. Most people are definitely not 100% friendly, and character depth may be the best way to go about it. She's not manipulative either, considering that again, it's typical that people like doing things for themselves and usually reach out to others if the reward proves lucrative. I think I'd rather have her be human instead of some fantastical type of character? In any case, I'll PM the rest and we'll go from there. 

edit: [@TTNoobs]
[/quote]

There's a difference between being a 'fantastical type character', and being required to meet certain criteria. There's no reason why a participant can't be flawed or faceted, but my point is, since this expedition is costing so much money, only the participants most likely to succeed will be selected. As I mentioned in the OP, cabin fever is a real and present danger to the success of the mission, and so the participants will have been ruthlessly psycho-analyzed. Someone who demonstrates difficulties with socialization, and who is more-selfish-than most, in it for themselves in an environment where personal gain is irrelevant,  would increase the risk of conflict between the crew. 

I am not saying our characters have to exceptionally gregarious and piously selfless - being too social would be a detriment, but actively being an introvert would make them a bit of a rogue element. 

Having said that, from an RP point of view, having someone who is saving 'debts in case strings need to be pulled' would provide some interesting conflict. I'm much less opposed to that tenet.