Supernatural 15x15 "Gimme Shelter" Season 15 Episode 15 Promo trailer HD - MATT COHEN DIRECTS – Castiel (Misha Collins) and Jack (Alexander Calvert) work a case involving members of a local church. Meanwhile, Sam (Jared Padalecki) and Dean (Jensen Ackles) go off in search of Amara (guest star Emily Swallow). Matt Cohen directed the episode written by Davy Perez (#1515). Original airdate 10/15/2020.