I think we agreed that the following are the big bad of S12 :
Main antagonists :
Doctor Hess - Since she is the leader of the British Men of Letter (or at least the only one we saw so far)
Lucifer - because well, you know...
Secondary antagonists :
Arthur Ketch - Since he is the hitman employed by the BMoL
Dagon - Since she was a goon of Lucifer watching for his son
Also, I heard that we could also add Alternate Universe Michael as a Big Bad of S13
so what do you say?