The Foundry is the 3rd episode of Season 12. It aired on October 27th, 2016.


Dean Purgatory Blade.png There was something about being there... It felt pure.

This episode summary is an official CW press release. It may contain errors.

When a crying baby leads to death in a mysterious abandoned house, Mary (guest star Samantha Smith), Sam and Dean decide to investigate. Meanwhile, Castiel's hunt for Lucifer (guest star Rick Springfield) leads him, begrudgingly, to partner up with Crowley (Mark A. Sheppard).




Main CastEdit

Recurring CastEdit

Special Guest StarsEdit

Guest StarsEdit


Featured Supernatural BeingsEdit


  • The episode was watched by 1.68 million viewers and got a 0.6 rating.
  • Mary cuts her hair short in this episode, in order to prevent bad guys from having an advantage of "long, pullable hair".
  • Castiel uses the alias Agent Beyonce while he refers to Crowley as Agent Z.
  • Writer Robert Berens said the meaning of the title of the episode was "personal".
  • Lucifer says his vessel is aging like Keith Richards, while Rowena counters Iggy Pop is worse. They are referring to two famous rock 'n' roll singers, the former being the founder of The Rolling Stones and the latter is the vocalist for The Stooges.
  • In the teaser for this episode, Lucifer's additional promise to Vince about healing his sister is present, but not present in the previous episode.
  • Mary introduces herself as Agent Shirley Patridge to the coroner. She also introduces Dean as Agent Cassidy and Sam as Agent Bonaduce. This is a reference to the actors on The Partridge Family.
  • Dean takes note of a motorcycle in this episode. Its owner is revealed in the following episode.


  • In the newspaper article, Hugo Moriarty's daughter is named Josephine, but Sam says, "let's get started with this girl here, Elizabeth Moriarty".


Castiel: Mary, you do belong here.
Mary: Goodnight, Castiel.
Castiel and Mary
Rowena: A druidic glyph. I'm using a hybrid spell of my own device -- Book of the Damned and Celtic magic. It should give your vessel the resiliency and strength of the mightiest tree.
Lucifer: Oh. There's a woody joke in there somewhere.
Rowena and Lucifer



Supernatural The Foundry Trailer The CW

Supernatural The Foundry Trailer The CW

Supernatural The Foundry Scene The CW

Supernatural The Foundry Scene The CW