76. Karl Tanner

The crow-turned-traitor is responsible for the death of Lord Commander Mormont. After those events, he and the other men who betrayed the Night's Watch stayed at Craster's Keep. But not for long.

Time of death: Season 4, episode 5, "First of His Name"

Cause of death: Stabbed in the back of the head and through the mouth by Jon Snow during the Night's Watch raid on Craster's Keep.

Sadness ranking: 0. He killed Jeor Mormont, so his death was totally satisfying. Especially because Jon Snow, who was so fond of Mormont, got to do it himself.