- Appears in: 2.08 Crossroad Blues
Sean Boyden was a brilliant architect and his buildings designs were described as pure genius. Sam and Dean investigate his death after he had jumped from one of the buildings that he had designed. The brothers learn from a friend that Sean was not always an architectural genius and had only become so ten years previously at Lloyd's Bar in Greenwood, Mississipi. Eventually, Sam and Dean realize that Sean Boyden, along with numerous others, had sold his soul to a crossroads demon for his talent and had jumped from the building to escape the hellhounds that were chasing him.
- He is never actually seen in the show, being only mentioned.