When the Levee Breaks

Summary

Dean and Bobby have something frightening locked in Bobby's panic room: Sam, who is corrupted by demon blood. With the apocalypse drawing nearer, Bobby wants to free Sam to fight on their side.

Guest stars

• Misha Collins as Castiel
• Colin Ford as Young Sam Winchester
• Julie McNiven as Anna Milton
• Christopher Heyerdahl as Alastair
• Juliana Wimbles as Demon Nurse
• Joey Bothwell as Nurse
• Genevieve Padalecki as Ruby
• Samantha Smith as Mary Winchester
• Jim Beaver as Bobby Singer