User blog comment:Rafe Adler/"Who We Are" and "All Along the Watchtower" Discussion/@comment-1031724-20170519024111/@comment-10889355-20170519025654

Castiel will. Misha is signed on Seasons 13 and 14. I don't know about Crowley... I hope so.

I'll be mad as hell if they remove Misha and Mark S. from main cast to give way for Mark P. and Alexander.