Protagonists: Sam, Dean, Castiel, Death
Major Antagonists: Rowena, Crowley, Amara
FEATURED CREATURES: Witch, Angel, Vampire, Demon, Corrupted/Altered Human, Four Horsemen, Celestial Being
Over Plot: Brothers try to figure out how to remove the mark of Cain
Major Character Deaths: Death
Minor Deaths: dead girl, Vampire kills a hunter, 8 people in a diner killed by Crowley
Notes: Dean kills a Vampire, then another, Rowena kills a child she loved (that she had made immortal), First appearance of Amara
Episode Bystander Kill Count: 10 humans
Killed/Destroyed/Banished Count: 2 Vampires, 1 Corrupted/Altered Human