Supernatural
S4E21 —
When the Levee Breaks
Air Date: 2009-05-07
Runtime: 43 minutes
Overview
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.
Main Cast
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Jared Padalecki (Sam Winchester)
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Jensen Ackles (Dean Winchester)
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Misha Collins (Castiel)
Guest Stars
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Misha Collins (Castiel)
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Colin Ford (Young Sam Winchester)
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Julie McNiven (Anna Milton)
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Christopher Heyerdahl (Alastair)
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Juliana Wimbles (Demon Nurse)
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Joey Bothwell (Nurse)
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Genevieve Padalecki (Ruby)
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Samantha Smith (Mary Winchester)
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Jim Beaver (Bobby Singer)
Crew
- Sera Gamble — Writer
- Robert Singer — Director
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