"A Little Slice Of Kevin"
November 14, 2012
CASTIEL ESCAPES PURGATORY - Sam and Dean are stunned when Castiel suddenly appears back on Earth with no memory of how he escaped from Purgatory. Meanwhile, Mrs. Tran (guest star Lauren Tom) enlists a witch (guest star Cyrina Fiallo) to concoct a demon bomb, but the witch double crosses Mrs. Tran and turns her and Kevin (guest star Osric Chau) over to Crowley (guest star Mark Sheppard).
Charlie Carner directed the episode written by Eugenie Ross--Leming & Brad Buckner.