Ok guys I'm really sorry to keep it up with the TV show character analysis, but I mean...no, actually I'm not.
South Park MBTI
Kyle--INFJ (his sense of poetic justice when evil-scheming-ENTJ cartman finally "gets what he deserves" in the AIDS episode is super INFJ, isn't it?)
Wendy--ENFJ like it's her fucking job (see the recent episode where she fights Cartman)
Craig--ISTP (maybe ESTP?)
Jimbo--ESTP (Stan's family is just chock full of ESTPs, huh?)
Ike--INTJ; they always talk about how brilliantly intelligent he is, but he seems to have stunted social skills (still can't talk at all??) and seems rather petulant on the occasions that Kyle's parents change any part of his routine.
Mr./Ms. Garrison--ENTP (*blink*...)
Big Gay Al--ENFP
Butters's dad--Hilariously ESTJ, see the vampire episode especially. ("What keeps a family together?? AN ORGANIZED PANTRY!!")
Butters's mom--Hilariously ISFJ. Poor INFP Butters has the stereotypical all-American SJ parents. Aww.
Towelie--ISFP (hellz yes, jeffster)
School Principal (forget her name)--ISTJ
Okay, I know that typing Ike as INTJ at such a young age might be a little bit of a stretch, but I found at least one character for all 16 types.
What you guys think eh?