Ok, first of all, i have no idea who demandred is. I first thought, like most people, that he was Mazrim Taim. There is so much evidence towards this theory that i was almost convinced. Listen to some desccription of the two men. Demandred has a "hawk nose" and was tall but "not so tall as Lews therin"(The wheel of time, 57). Now Mazrim taim is described with a "hooked nose" and he is tall "nearly as tall as Rand"(WH, 39). There are also plenty references to Demandred and Mazrim Taim jelousy of Lews/Rand. After reading these descriptions, as well as other descriptions in other books, i was alomst convinced that Demandred was posing as Taim. However, once readin WH, i am not so sure. When Raefar Kisman is in Far Madding, he thinks about his orders. His orders to "Kill him"-in reference to Rand-were given by Demandred and Taim. (WH 441-442). So that leads me to believe that Taim and Demandred are two different people. Well, basically, i have no idea who Demandred could be. I think Robert Jordan started searching the web, saw the FAQ, and decided to play with our heads. He has given so many clues that Taim was Demandred that it was almost too obvious. Taim is probably a new dread lord envious of Rand, because once Rand came along, he could not be Dragon Reborn. Demandred is a mystery to us, and i think that is how RJ wants it to be.