Skytteflickan88
Super Freak
And bite your tongue about her being "dead." I'm still holding out hope that she'll come back to Earth one day. Honestly, for me, Cordelia's evolution as a character was one of the best and most gratifying things I loved most about Buffy/Angel, and I give enormous credit to Charisma for it because she played it amazingly. Such a shame to me that things went down the way they did because Cordy wasn't anywhere near done achieving her potential. But alas, it is what it is.
She came back in the comics, that Whedon calls a official continuation of season 5(he said that for Angel After the fall anyway, where Cordelia comes back).
She was still dead, but back back as a ghost-ish creature who gave Angel some advice/help.