Mink

"Mink, to the kitchens."

- Lord Commander Jeor Mormont

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

Season 1
Mink is present during the speech Lord Commander Jeor Mormont gave to the "graduating" recruits. Mink is assigned to the kitchens.

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