He was responsible for clearing out a vampire's nest and bringing all eight vampires to Ellsworth, who likely delivered them to Crowley.
He was captured and taken to Bobby Singer's house for answers. He was placed inside a Devil's Trap so he wouldn't escape. Bobby, Dean, and Sam interrogated him, using Ruby's Knife, for Crowley's location. It is unknown what happened to Red afterwards but it is likely that they killed him after he revealed Ellsworth's position and location which is further indicated by the fact that Bobby talks about capturing another "hunter demon" for questioning when they find Ellsworth gone.
- Sandy Robson also portrayed Norse wolf god Fenrir in the Season 13 episode Unfinished Bussiness.