So this thread may totally flop if no one's seen the show (it's an older HBO one), but it's a favorite of mine.
I'm going to give it a whirl on typing the characters. I also want to add that typing is maybe more challenging with the characters because some have disorders, but....I'll try it out anyway!
*Nate - INFP
*Claire - IxFP
*David - IxFJ
*Ruth - ISFJ
*Lisa - IxFJ
*Brenda - hmm - I have a really hard time w/ her, but - INxP
*Billy - INTP (?)
*Keith - ISTx (I'm inclined to say ISTJ)
*Brenda and Billy's mom - ENTx
*Frederico - I'm really not sure w/ him either - xSTJ ?
*Russell (one of Claire's boyfriends) - truly no idea. Sometimes I think ISFP, but I confess it's mostly due to his pursuit of art. He does seem to have a fair amt of Fe though...
*Olivier (art teacher) - again I don't know. xSTP? Doesn't really seem like an I in the sense that the others are. And whatever he is, he has zero Fe. I suppose he could be a caustic xSFP, but that doesn't sit well with me.