Stead is one of the Redcloaks. Along with Shadow and Howl, he first appeared in Broken Ground. He later returned in The Burning Tide as Shane's second-in-command. In The Book of Shane, Shane told Karmo to talk to Alix when the Redcloaks were mentioned.
It is very possible that his real identity is Alix, because of his ram-like features. He has horizontal pupils, like that of a ram.
As of Heart of the Land, Stead has fulfilled Shane's position as the leader of the Redcloaks.