Thad

Thad is a masked man hiding in the forests near Yew.

When the Avatar encountered him in the forest in Ultima VII, Thad at first was very careful with what to say, but then opened up to him/her. Thad revealed how his sister Millie was seduced by the Fellowship and how this had totally changed her. Following this, Thad started to see the truth that the Fellowship was an evil organisation and planned on attacking them, even if he would have to kill every single of them. However, since he was alone, he retreated into the forests to make his plans how to proceed to weaken the Fellowship.

Since the Fellowship was outlawed after the battle at the Black Gate, Thad was proven right and he probably helped with rooting out the Fellowship.

Trivia

 * Millie can be asked about Thad. Their story reflects how in real life families react to people joining Scientology, and how it changes them.