Night's Watch Officer 2

A Night's Watch Officer is a recurring background character in the second and third seasons. He's portrayed by Dennis McKeever, who had portrayed Othell Yarwyck in Season 1.

Biography
This man is an officer in the Night's Watch, stationed at Castle Black.

Season 2
Yarwyck takes part in Lord Commander Mormont's Great Ranging. He is among the officers that takes shelter inside Craster's Keep and is present when Mormont speaks with Craster about Mance Rayder's actions and plans. The Night's Watch are forced to move on when Jon Snow is caught spying on Craster leaving a newborn son in the woods.

Season 3
Yarwyck survives the White Walkers' attack against the Night's Watch camp atop the Fist of the First Men and joins the survivors' march to Craster's Keep. He's present when the Mutiny at Craster's Keep breaks out.

Behind the scenes
The character Dennis McKeever portrayed was assumed to be Othell Yarwyck throughout Seasons 1, 2 and 3. However, Brian Fortune, who had portrayed Bowen Marsh in Season 1, reappears in Season 4 and is credited as Othell Yarwyck, implying that the character portrayed by McKeever in Seasons 2 and 3 was not Yarwyck but another officer of the Watch.