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"What Is and What Should Never Be"
Series Supernatural
Season 2, Episode 20
Supernatural 2x20 001
Air date May 3rd, 2007
Writers Raelle Tucker
Director Eric Kripke
Producers Ben Edlund; Peter Johnson; Phil Sgriccia; John Shiban; Kim Manners; McG; Cyrus Yavneh; Eric Kripke; Robert Singer; Todd Aronauer
Starring Jared Padalecki; Jensen Ackles
Episode guide
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"Folsom Prison Blues"
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"All Hell Breaks Loose (Part 1)"

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Notes & Trivia[]

  • Production code number: 3T5520
  • The title for this episode is taken from the song "What Is and What Should Never Be" by rock and roll band Led Zeppelin. It was recorded in 1969 and released on the album Led Zeppelin II. Another episode that takes it's title from a Led Zeppelin song is the season four episode, "When the Levee Breaks".
  • Actor Jeffrey Dean Morgan is uncredited for his participation in this episode.

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This article pertains to an episode from season 2 of Supernatural. This template will categorize articles that include it into the Supernatural season 2 episodes category.
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