Basically, you need to go into your Mbases.ini file and add new characters, using the current characters in there as a guide (note- the ShipDealers, EquipmentDealers, etc. are different than the Bar folks, and refer to different THNs)... or, better yet, write an XML script putting them in at the appropriate points (this is a wee bit trickier, but possible) with new names. In the Toolkit, since I'm not adding new Bases to the game, I just "recycle" Faction-appropriate people, so that if you meet people in the Bar, you'll run into them at the ShipDealer (they can't always be sitting around in the Bar, right?).