Scoobynatural Sam, Dean and Castiel are transported into the animated world of Scooby Doo; they join forces with the Scooby gang to solve a ghostly mystery. Details Casts Title Scoobynatural Release Date 2018-03-29 Runtime 00 Hours 42 Minutes Genres Horror Comedy Animation Mystery Thriller Production Companies Warner Bros. Television, Kripke Enterprises Production Countries United States of America Jensen Ackles... Dean Winchester... Jared Padalecki... Sam Winchester... Misha Collins... Castiel... Frank Welker... Fred Jones / Scooby-Doo... Grey DeLisle... Daphne Blake... Matthew Lillard... Shaggy Rogers... Kate Micucci... Velma Dinkley... Dee Bradley Baker... The Phantasm... Eric Bauza... Cousin Slicker... Stephen Stanton... Cosgood Creeps... Fred Tatasciore... Colonel Beauregard Sander... Peter New... Jay... Michael Girardin... Alan... Kegan Frith... The Ghost Kid...