Aren't intelligence and charisma normal tabletop stats anyway?
They are; it's the physical ones that don't exist, mainly because the characters never manifest physically. The numeric stats included by default are:
playerRelationship - How much the character likes the player
luck - What you roll against when you can't decide what to roll against
intelligence - This is only used to determine whether experience improves a character's ship skills right now
charisma - Yeah, that
notoriety - How likely a character is to be recognised
lawfulness - How much a character cares about the law
engineering - Handiness with ship hulls, repairs, etc
piloting - Flying, fighting success
navigation - Finding places
sensors - Finding things
Other attributes can be added on the fly, but the ones above are the only ones with non-zero defaults. A critical success exercises the attribute, a critical failure abuses it. The player has a character sheet too, although things like "piloting" don't get used at all. The character sheet has all the rest of teh character information within it as well, such as employment contracts, a record of kills, assists, etc.
All characters other than the player are NPCs, because Pioneer is (and will always be) single player. People often ask for multiplayer, but the scale of real astronomical physics requires the ability to fast-forward time (or a remarkable boredom threshold) which is hard to marry with multiplayer.