From Tar Valon Library
Adsalan is a Warder serving the Black Ajah hunters Egwene encounters in the Tower. His Aes Sedai is unknown, but Egwene believes none of the Sitters present has a Warder, so he is likely to be bonded to one of the spies sent in by the Salidar Aes Sedai. He is described as having ruddy hair and a square jaw.
(Reference The Gathering Storm, Chapter 12)