|Dates||???? – 2012 (killed by Meg)|
|Episode(s)||7.21 Reading Is Fundamental|
Rosco was a demon who has taken possession of a trucker.
7.21 Reading Is Fundamental
Rosco and another demon follow Meg, then have a meeting near the cabin where she, the Winchesters, and Castiel are hiding out. She pretends to offer to give Castiel to Crowley, but once she learns that Rosco and the other demon have not told anyone else that Cas is alive, Meg kills both of them with Ruby's knife.