User blog comment:Mlgrsd/Who could that be?/@comment-10889355-20170515233731

I think it's Bobby. JDM is expensive as hell and SPN has a low budget so it's definitely not him. It could be Crowley or Metatron (judging by the height + body shape).

And are we sure those two are the same person? Cause I feel like the one where Cas says "you?" is Billie and the whole cosmic consequences come in.