There's Something About Mary

There's Something About Mary is the 21st episode of Season 12. It will air on May 11, 2017.

Summary
TBA.

Plot
TBA.

Main Cast

 * Jared Padalecki as Sam Winchester
 * Jensen Ackles as Dean Winchester
 * Mark Sheppard as Crowley
 * Mark Pellegrino as Lucifer
 * Misha Collins as Castiel

Guest Stars

 * Samantha Smith as Mary Winchester
 * David Haydn-Jones as Arthur Ketch
 * Elizabeth Blackmore as Toni Bevell

Featured Supernatural Beings

 * Archangel (Lucifer)
 * Seraph (Castiel)
 * Crossroad Demon (Crowley)