Hobb

Hobb is a minor character in the fourth season who had already been mentioned in the third season. He is a member of the  Night's Watch.

Background
Hobb is a steward of the Night's Watch. He serves as the cook of Castle Black.

Season 3
On their way back to the Wall from the mutiny at Craster's Keep, Sam mentions to Gilly that Hobb makes a very tasty venison stew with onions.

Season 4
Acting Commander Thorne warns Jon Snow that Hobb will feed his direwolf Ghost for supper if the creature isn't locked up. A few days later, d uring the Battle of Castle Black, a small wildling party comes from the south and breaches the walls of the castle. Some of them break into the kitchen, and Hobb calmly walks up to the wildlings, and lands his butchers knife into one of the wildlings chest.

In the books
In the A Song of Ice and Fire novels, Hobb is also known as Three-Finger Hobb.