User blog comment:Mlgrsd/Will Crowley return from the dead?/@comment-27669262-20170525112654/@comment-27669262-20170525124507

He didn`t? My mistake then.

But anyway, it`s highly possible for him to be able to resurrect other beings too. There were some backgrounds in Season 5-6 about Archangels` ability to do that like Raphael`s suggestion about Cas` return from the dead and the conversation between Crowley and Cas where he claimed they would have been dying endlessly hadn`t Crowley found Purgatory.