scantilyclad, I disagree, mal and Inara have such a sweet relationship, they have to be dual types. Plus I don't see the kind of passiveness that is characteristic in INTp, he makes his opinion heard and with vigor. Whatsmore his stance and costume are so ISTj (ie, military uniform and constaint vigulance). However I think Simon might be an INTj.
zoe is defo. an SJ (sir, yes sir), but perhaps she is an ISFj???
wash is the epitome of ENTj.
Refined List...
Mal: ISTj
Inara: ENFj
Kaylee: ESFj
Simon: INTj
Jayne: ISTp
Zoe: ISFj
Wash: ENTj
Book: not sure, maybe INFj
River: mental instability makes this hard, but her relationship with her brother makes me think ESFj
and colors is so right, wash really didn't have to die... right en media rez de his leaf on the wind cuteness too!