I wasn't sure about a lot of these. And, I don't know if this has been done before. But I wasted a good amount of time, so I don't regret it. Tralalalala...
Chakotay: He's.. too boring to type.
Harry Kim: ISFJ The writers must have really hated this guy.
Kes: ISFP? All I really remember about her is the strangely rapid hair growth.
The Doctor: ENTJ?
Seven of Nine: INTJ I was disappointed she and the Doctor never hooked up.
Tuvok: ISTJ? INTJ?
Barclay: INTP? I wish someone had accidentally called him Broccoli on Voyager too.
Deep Space Nine
Odo: ISTJ? INTJ?
Quark: E.. something.
Rom: ISFP The best television character of all time.
Ezri: Does anyone care...?
Jake: INFP I really liked him. It's good they avoided another Wesley. But I also liked laughing at Wesley's sweaters so...
Nog: INTJ maybe. Because I want there to be an INTJ ferengi.
Weyoun: EN something. How many times did he die? He really creeped me out.
Dukat: ENTJ The best Star Trek villain, if you pretend the last season doesn't exist.. and maybe ignore that scene with the stick.
Ziyal: ISFJ or INFJ I found it really funny that Dukat and Kira were like her divorced parents who had to tolerate each other for her art shows.
Kai Winn: ISFJ? I cannot describe how much I hated her.