Harker

Harker is a background character in Game of Thrones. He is played by an unidentified extra and only appears in the fifth episode of the second season. Harker is a member of the Night's Watch, a Ranger serving under Qhorin Halfhand.

Background
He is a ranger of the Night's Watch.

Season 2
After meeting the force led by Lord Commander Jeor Mormont at the Fist of the First Men, Qhorin Halfhand selects Stonesnake, Harker, and Borba for a scouting party to ambush a group of wildling lookouts. They are joined by Jon Snow.

In the books
In the Song of Ice and Fire novels, there is no character of this name. Qhorin Halfhand's party includes Stonesnake and Jon Snow as in the show but also features Squire Dalbridge and Ebben.