Before Sam and Dean, there was John and Mary. Told from the perspective of narrator Dean Winchester, this is the epic, untold love story of how John met Mary, and how they put it all on the line to not … Meg Donnelly, Drake Rodger, Nida Khurshid, Jensen Ackles, Jojo Fleites, Demetria McKinney, Bianca Kajlich Added on HBO 2023-06-27. Youtube Trailer