Jeffrey's Demon

The demon who possesed Jeffery, described himself as a talent scout, his job, to search the world for new people to corrupt, to become the next generation of demons

History
In 2009, he came to Jeffery, and helped cause his evil tendancys to grow, and thus steared him directly down the wrong path, helping him with his serial killings.

Seaching for Lilith, the Winchester brothers, with the help of Nova, captured him, then they tortured him till he told them where they could find Lilith, before exocising him, and surposedly freeing Jeffrey.

The demon was immprisoned far far down, for betreying Lilith, as such when Jeffrey tried to summon him, he was unable, untill he managed to get a stronger ritual.

In 2012 he brought back the demon, however instead of possesing him, as he had expected, he took the body of Nova's son, who Jeffrey had kidnapped, then he told Jeffery there time together was over, as Jeffery had completed his path to evil.

When Jeffrey refused this, he knocked him down, then he entered a skirmish with Sam winchester, who had arrived to save his brother, the demon managed to knock him back, but was then captured, when he accidentally walked into a devils trap, afterwards he was exosised again, back to hell.