Dark Matter 101

The first episode of the space opera Dark Matter aired and, TBH, I liked it. I wasn't as smitten with it as with Stargate, but I'm so starved for a space based sci-fi show that I'm willing to give it a try, even though it's by Mallozzi and Mullie, you know, the fuckers who fucked up SGA so much, pardon my French. I find the characters interesting and I'm curious where it's headed. I'm especially intrigued by One. I mean, Two is the captain, Three is the gun guy, Four the close combat guy, Five the computer geek, Six the pilot... but what's One's role in the crew? Curious!