Two supporting characters to die October 22, 2009 Season Five Spoilers According to Michael Ausiello, "Sam and Dean fight Lucifer and two supporting characters will die!" on episode #5.10. Source: EW.com. 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