The cast and creatives of the CW’s Supernatural made their way to the Dolby Theater in Hollywood for PaleyFest 2018. Before they stepped on stage for a panel discussion led by Entertainment Weekly’s Samantha Highfill, the audience members were treated to a world premiere screening of Scoobynatural, the upcoming animated Supernatural and Scooby-Doo crossover episode. Sitting onstage were Jared Padalecki, Jensen Ackles, Misha Collins, Alexander Calvert, along with Exec…