Deputy Coroner (to Sam and Dean): Your colleagues are already inside.

Crowley and Castiel (at the same time): Agents.

Dean Winchester: Okay, this has gotta stop.

(Later…)

Castiel (about Crowley): I agree with Agent Zappa.

Dean Winchester: Oh, will you stop?

From Supernatural – Season 12 Episode 8: ‘LOTUS’ (12×08) | TV series produced by The CW