Balian

"Balian, to the Rangers."

- Lord Commander Jeor Mormont

Balian is an unidentified background character in the first season. He is a newly made Ranger of the Night's Watch, of the same group of recruits as Jon Snow.

Season 1
Balian is present during the speech Lord Commander Jeor Mormont gave to the "graduating" recruits. Matthar is assigned to the Rangers.

In the books
In the Song of Ice and Fire novels, there's no member of the Night's Watch called Balian.