- Jared Padalecki (Sam Winchester)
- Jensen Ackles (Dean Winchester)
- Misha Collins (Castiel)
Supernatural — S8E14
Episode: Trial and Error
Air Date: 2013-02-13
Runtime: 47 min
Overview
Kevin deciphers the demon tablet and figures out how to close the gates of Hell. He tells Sam and Dean that according to the tablet one person must face a series of three trials, and the first one is to kill a hellhound.