I honestly don't remember the characters well enough to contribute much , but I figured there were a lot of different types on the show so it would make a nice thread.
Lucas: some kind of NF ?
Peyton: xSFP or XNFP
Hayley: an ISFJ or xNFx? ?
Mouth: xNFP maybe, want to say INFP
Dan Scott: ENTJ
Keith: ENFJ maybe
Whitey: ISTJ I guess
Sorry if I'm missing any major characters.