Supernatural Season 6 Episode 16
...And Then There Were None
Eve, the Mother of All, unleashes a new monster upon the world: a black worm-slug that can enter the brain and force people to kill. Sam and Dean join forces with Bobby and Rufus and track it to a cannery, only to discover that Gwen and Samuel are also there looking for the monster... and none of them know who the monster is inside.
Guest Stars
Steven Williams
Rufus Turner
Jessica Heafey
Gwen Campbell
Julia Maxwell
Eve
Brent Stait
Rick
Jordan Weller
Deputy #1