Lord Commander Jeor Mormont
Jeor Mormont, nicknamed "the Old Bear", was the head of House Mormont. He fought under Lord Eddard Stark during Robert's Rebellion. Jeor later "retired" to the Night's Watch so his son, Jorah, could lead the family. The Old Bear rose rapidly to become Lord Commander of the Night's Watch. His pet raven constantly asks for corn.
Jon Snow carries the Mormont family's ancestral Valyrian steel sword, Longclaw - a gift from the Old Bear himself.