Ellsworth's vessel

This unnamed man or possibly Thomas was the vessel of the black-eyed demon Ellsworth. He was killed along with Ellsworth by Castiel when Ellsworth tried to escape the man.

At some unknown point this man was possessed by the black-eyed demon Ellsworth.

When Ellsworth was in his cabin Castiel came in and smoted Ellsworth's hunters Ellsworth tried to escape him by smoking out of this man, however Castiel forced Ellsworth back into this man and smoted Ellsworth along with this man, killing them both.

When Ellsworth takes the phone he says that he was special agent Thomas, it is unknown if that is his vessel's real name or if he stole the identity.