|Dates||???? - 2018 (killed by Gabriel)|
|Episode(s)||13.20 Unfinished Business|
Sleipnir was a son of Loki, and close friends with Gabriel. When the Apocalypse was looming, and it appeared that Lucifer would be victorious, Sleipnir, along with his brothers Fenrir Odensbane and Narfi bound and kidnapped Gabriel on orders of his father, and sold Gabriel off to the Prince of Hell Asmodeus.
Despite his age, Sleipnir does not appear to be particularly powerful. In a fight with Dean, after Dean disarms him, he is easily thrown to the ground. Unlike most pagan gods, he does not display any extraordinary powers of his own. His real form is a horse, as his occasionally-glimpsed "demigod face" shows. Slepinir also shows a weakness to silver, as a silver bullet to the right shoulder was able to wound Sleipnir. Like most pagan gods, Slepinir can be killed by a specially-crafted wooden sword through the heart.
Sleipnir in Lore
In Norse mythology, Slepinir is the eight-legged horse of Odin, and the child of Loki and the horse Svaðilfari.