Death of a character in the books/movies

I will not post any spoilers past Chamber of Secrets. I have a discussion with a co-worker, stating that in every book/movie a person dies, except for one book. I say that Tom Riddle's character in the Chamber of Secrets (Being what it is for those who have read all of the books.) died. Would you consider his character is an actual character. Any input is appreciated.

Yea, in chamber of secrets Riddle does die, but if you read the last book you know that he comes back because when he died parts of his soul were in horcruxes so he could be reborn. sorry if this deosn't help -Sana

he came alive by couple of rituals in harry potter and the goblet of fire... so he died in chamber of secrets but came alive as he has part of his soul in horcruxes

The horcrux died when Harry put the fang in the diary, so the memory that was preserved in the diary.