My guesses with explanations:
Only an idealist could take the kind of ownership of the situation she did: I will get home, and I will not morally compromise.
People seem to be pegging him as an idealist but I peg him as a Guardian. He out of everybody wanted to settle down and accept the situation.
Pretty much all Vulcans exlcuding T'Pol are INTJs.
Also an easy one. A blatant Artisan who is also really extraverted and emotional.
It's difficult to be a Maquis and not be a Guardian of some sort considering their nesting instinct and their hard stance against idealism.
All of these are obvious except for the J-P distinction.
The hard attribute here is the N-S. He starts out as an 'S' then kind of moves toward 'N' as he realizes he can get people to treat him like a human. I suppose it's the same with moving from 'I' to 'E' as he refines his social subroutines.
INTJ is tempting but she is a super-conservative character.
ISTJ really is a common Star Trek character because it's the writers' go-to for the 'Costello'. The ISTJ is the ultimate straight man, and Chakotay does it for Janeway, Kim does it for Paris, and Seven does it for whoever she's in the room with.
ISTJs from other series: