<Tr> <Td_colspan="2"> List of Supernatural episodes </Td> </Tr> <P> The thirteenth season of Supernatural, an American fantasy horror television series created by Eric Kripke, premiered on October 12, 2017, on The CW and concluded on May 17, 2018 . The season consisted of 23 episodes and aired on Thursdays at 8: 00 pm (ET). This is the second season with Andrew Dabb and Robert Singer as showrunners . </P> <P> This season featured a backdoor pilot to a possible spin - off series called Wayward Sisters, starring Kim Rhodes as Sheriff Jody Mills, Briana Buckmaster as Sheriff Donna Hanscum, Kathryn Newton as Claire Novak, Katherine Ramdeen as Alex Jones, Clark Backo as Patience Turner and Yadira Guevara - Prip as Kaia Nieves . The spin - off was ultimately not chosen to move forward as a series . The season also featured an animated crossover episode with Scooby - Doo . </P> <Ul> <Li> Jared Padalecki as Sam Winchester </Li> <Li> Jensen Ackles as Dean Winchester / Michael </Li> <Li> Mark Pellegrino as Lucifer </Li> <Li> Alexander Calvert as Jack / Nephilim </Li> <Li> Misha Collins as Castiel </Li> </Ul>

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