- Jared Padalecki (Sam Winchester)
- Jensen Ackles (Dean Winchester)
- Misha Collins (Castiel)
Supernatural — S9E12
Episode: Sharp Teeth
Air Date: 2014-01-28
Runtime: 42 min
Overview
Six months after his disappearance, Garth turns up injured in a hospital. Sam and Dean arrive separately to investigate and soon discover that their friend has undergone a startling transformation.