I saw that John and Septimus have mouse-over descriptions other than "heh heh this guy heh heh nothing said heh". I tried to do this myself by editing the playerdata but only ended up ruining Solari's files and needing to recreate her as she disappeared from my character list despite all of her files being correct. How 2 does.
Oh, that'll usually happen if you include some bad symbols or characters. The info box is REALLY picky. For example, if you copy and pasted it from microsoft word or something, and used apostrophes, it'll break. The Word apostrophes are ... different? For some reason? Best thing I can suggest you do is type the whole thing in that little box.