Locke

Locke is a recurring character who will debut in the third season. He will be played by Noah Taylor.

Locke is a renamed version of the popular character of Vargo Hoat in the Song of Ice and Fire novels. The reason for the name change is not yet known.

In the books
In the Song of Ice and Fire novels, Vargo Hoat is the leader of the Brave Companions, often called the Bloody Mummers and the Footmen, a sellsword company formed by dangerous men of different cultures and backgrounds.