Unhand her. I shall have your head for this!
Who: Lord Commander Jeor Mormont
Source: Episode 3x4, "And Now His Watch is Ended"
Note: Character has just watched one of his Night's Watch men, Karl, kill their host Craster (see above). Karl then grabs one of Craster's daughter-wives, demanding to know where their food is hidden, prompting the above line. Character moves to fight Karl, but is stabbed in the back by another disgruntled Night's Watch brother, Rast.