Supernatural 'Blade Runners' photos and spoilers reveal return of Crowley and Snooki's appearance

Supernatural will return on Tuesday, March 18 with the latest installment in Season 9 entitled "Blade Runners." The episode will feature the return of Crowley (Mark Sheppard) and will also have a cameo appearance from, of all people, Nicole "Snooki" Polizzi.

TVLine has posted a batch of first-look photos at the episode, in which Crowley reveals to Sam (Jared Padalecki) and Dean (Jensen Ackles) that he has been injecting himself with human blood, presumably because he is still craving it after the third trial in the Season 8 finale.

Remember the Mark of Cain and First Blade stuff from a few episodes ago? The show will return to that plot in the next episode.

"The King of Hell falling off the wagon will be the least of the Winchesters' problems when they find out the demon helping him score blood sold him out to Abaddon and told her the brothers were after The First Blade," the site reports. "In the race to get to the weapon first, Dean and Sam will turn to a former member of the Men of Letters (who is, hopefully, not Snooki)."

If we had to guess, Crowley probably hasn't found the blade yet because he's been too busy shooting himself up with blood, but only time will tell. As for Snooki's appearance, we have no idea, but let's remember that Paris Hilton once guest-starred on this show as a pagan god.

What are your theories about this upcoming episode? Let us know in the comments below.