Wallen

Stiv is a character in Game of Thrones. He is played by Stephen Don and will appear in the first season.

Stiv is a former member of the Night's Watch who has abandoned the Wall to live amongst the wildlings.

In the books
In the Song of Ice and Fire novels Stiv is a member of a band of wildlings who manage to evade the Watch to seek succor in the lands to the south. He is an associate of Osha.