"Really? My favorite character is Dean."
"Dean’s cool too. What are you supposed to be?"
"I suppose I am dressed as a human."
"Oh. You make a very good human."
Cas would be the guy who gives out the full-size candy bars so all the kids show up at his apartment.
Also he only owns, like, three outfits so red hoodie it is.
Happy Halloween! (There was going to be a gory Abaddon pic but its nowhere near finished)