Supernatural When the Levee Breaks (Season 4, Episode 21)
TV-14
TV Episode | 43 min | Drama, Fantasy, Horror

Supernatural

When the Levee Breaks (Season 4, Episode 21)

TV-14

TV Episode | 43 min | Drama, Fantasy, Horror

Dean and Bobby have something frightening locked in Bobby's panic room: Sam, contaminated by demon blood. But as the apocalypse draws nearer, Bobby wants to free Sam to battle on their side.

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Cast	+ Add Cast
11 cast members

Name	Known for
Jared Padalecki Sam Winchester Sam Winchester See fewer	Supernatural (2005)
Jensen Ackles Dean Winchester Dean Winchester See fewer	Supernatural (2005)
Jim Beaver Bobby Singer Bobby Singer See fewer	Deadwood (2004)
Genevieve Padalecki Ruby (as Genevieve Cortese) Ruby (as Genevieve Cortese) See fewer	Hated (2012)
Misha Collins Castiel Castiel See fewer	Supernatural (2005)
Julie McNiven Anna Milton Anna Milton See fewer	Doom Patrol (2019)
Christopher Heyerdahl Alastair Alastair See fewer	Under the Banner of Heaven (2022)
Colin Ford Young Sam Winchester Young Sam Winchester See fewer	We Bought a Zoo (2011)
Samantha Smith Mary Winchester Mary Winchester See fewer	Supernatural (2005)
Juliana Wimbles Demon Nurse Demon Nurse See fewer	The Good Doctor (2017)
Joey Bothwell Nurse Nurse See fewer	Frankie & Alice (2010)