R u b y
Around the time of the Black Plague in Europe in 1350, Ruby is a human who sells her soul to the demon who would later possess Tammi Benton. In exchange, the demon teaches her witchcraft. Ruby goes to Hell and eventually becomes a demon herself after centuries of torture. She also adopts the demon faith and becomes a worshipper of Lucifer.
Ruby is meant to serve as a member of the army of demons Azazel has released from the Devil's Gate in Wyoming. However, when Azazel is killed by Dean Winchester, she is tasked with a secret undercover operation by Lilith (the new leader of the demon army) instead, one that pits her against her fellow soldiers: when 65 of the 66 Seals have been broken, Ruby has to get Sam Winchester to kill Lilith in order to break the last seal and free Lucifer. Ruby secures an ancient demon-killing knife of the Kurds with which to defend herself and her charge from other demons, and begins following Sam and killing demons who try to kill him to neutralize him as a competitor for leadership of the army. She initially presents herself as a fellow hunter, but soon discloses her true identity as a demon to Sam when he presses her for the truth. She gets him to stay his hand when she tells him that she can help him save Dean from the deal he made with a crossroads demon. Ruby insists that she is helping them and fighting on the side of humans against her own kind because she remembers how being human felt. However, Dean largely regards her and her apparent helpfulness with suspicion. When she begins manipulating Sam into tapping into his latent demonic powers, given to him by Azazel, Dean recognizes it as proof of her evil intentions and turns against her completely. While Dean is in Hell, Ruby seduces Sam at his lowest point. She convinces him to go after Lilith instead of keep up his efforts to bring Dean back, and trains him to practice with his powers and enhance them by drinking her blood, getting him powerful enough to exorcise (and later, kill) demons by thought. When she comes to save him from a trap set by Lilith's minions even after he threatened to kill her if she interfered, she finally earns his trust. After Castiel brings Dean back from Hell, Sam keeps much of his relationship with Ruby a secret and they continue working together to kill Lilith behind Dean's back and against his wishes. Ruby eventually gets Sam addicted to her blood, which deepens the fall-out between the brothers when Dean finds out and tries to kill Ruby to stop her from hurting and manipulating Sam, only for Sam to continue to defend her. In the ensuing fight, Sam picks Ruby over Dean. Once 65 of the seals have been broken, Ruby leads Sam to St. Mary's Convent to kill Lilith and prevents Dean from telling Sam that Lilith's death is the last seal. Once Sam finally succeeds in killing Lilith, Ruby reveals her duplicity to him and is killed by Dean with her own knife while Sam holds her in place from behind. |