Supernatural S12 – Sneak Peak: Introduction Mary Winchester September 7, 2016 News, News Supernatural -- "Keep Calm and Carry On" -- SN1201a_0201.jpg -- Pictured: Samantha Smith as Mary Winchester -- Photo: Katie Yu/The CW -- é 2016 The CW Network, LLC. All Rights Reserved Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window) Related