User blog comment:KillRoy231/Mr. Ketch/@comment-1975828-20161106225004/@comment-1031724-20161110055145

Yeah, I did remember that. If Mick is really as good as he says he is, why would he send for a psychopath that Toni, who tortured Sam, thought was too gruesome?

Quite clearly the leader of the BMoL is either the main villain of the season, or the equivalent to Lucifer in Seasons 1-4. Depending on whether we see him, we'll know, and if we don't, we'll compare Mr. Ketch to Azazel and Lilith