After large discussion on another forum, I need more opinions.
The carver is ( for you dumbos ). The mysterious Rapist which is in Nip/Tuck ( look at the sig ).
I think it could be Merill, but people say it can be Kevin.
The weirdest, but actually very possible, option. Is that it is Sean. I know he was attacked by the carver, he was not raped, nor was his wound as bad as the other victims, and the multi personality aspect is possible. Escober is fixed in his mind ( going nearer to the point of Sean being a nut case ). Also, the fact that Sean has access to all the scapels, drugs, which are used by the carver.
Another possiblity, is that the Carver is a women, i know they mention that he rapes his enemies, and they say he is a man, but thye writers arent scared to go into the unknown. And there is equipment that can mis lead the victims.
My best bet is Merrill, I mean, he cut his face off last time you see him, meaning he is a nut.