From A Wiki of Ice and Fire
The shavepates are Ghiscari citizens of Meereen who have accepted the rule of Daenerys Targaryen.
A Dance with Dragons
The shavepates have shaved off their traditional Ghiscari hairstyles, which represents leaving the old Meereen behind and accepting the new Meereen. They are considered traitors by the Sons of the Harpy who kill them along with freedmen and Unsullied. Their leader is Skahaz mo Kandaq, who is known as "the Shavepate".
- ↑ 1.0 1.1 A Dance with Dragons, Chapter 2, Daenerys I.