Supernatural: Casting related scoop from E! Online's Kristin Dos Santos

Here's some scoop on Supernatural from Kristin Dos Santos' Spoiler Chat column, which was posted on 10/30/13.

Emily: In desperate need of Supernatural spoilers!
In an episode fittingly titled "First Born," fans will meet a retired demon named Cain, who was known as the Father of Murder who used to train the Knights of Hell. So what made him quit the game? Love! But Cain may be sticking around for a bit, so we're thinking he could return to his old ways…

Link to the full article:Spoiler Chat: Scoop on Vampire Diaries, Revenge, The Blacklist, Supernatural and More! | E! Online