People at a certain KS level got to work with RTG to develop an NPC that would appear in the game. They weren't there in the initial release and were added later in The Final Cut.
And they were only added in the PC/Mac/Linux version. They don't get to see their characters if they're playing the console version. I would hope that RT are planning to add them to all versions, but that would be a pretty big hope at this point.