Episode:Doppelganger - Semantic Stargate Wiki

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"Doppleganger"

An episode from Stargate Atlantis

John Sheppard is fighting himself.

Episode Nb

Season 4
Episode 04

Directed by

Robert C. Cooper

Written by

Robert C. Cooper

Produced by

Andy Mikita

Original air date

USA: October 19, 2007

UK: October 30, 2007

Length

41'43"

Guest starring

Episode chronology

"Reunion"

"Travelers"

During an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares.

"Doppelganger" is the 4th episode of Stargate Atlantis Season 4.

Summary

Story development

Story

Previously

Teaser

Act 1

Act 2

Act 3

Act 4

Analysis

Questions

Answered questions

Non-answered questions

Template:Appearances Doppelganger

Notes

References

01. "Rising", Part 1 (1 of 2) • 02. "Rising", Part 2 (2 of 2) • 03. "Hide and Seek" • 04. "Thirty Eight Minutes" • 05. "Suspicion" • 06. "Childhood's End" • 07. "Poisoning the Well" • 08. "Underground" • 09. "Home" • 10. "The Storm" (1 of 2) • 11. "The Eye" (2 of 2) • 12. "The Defiant One" • 13. "Hot Zone" • 14. "Sanctuary" • 15. "Before I Sleep" • 16. "The Brotherhood" • 17. "Letters From Pegasus" • 18. "The Gift" • 19. "The Siege", Part 1 (1 of 3) • 20. "The Siege", Part 2 (2 of 3)

Season 2

01. "The Siege", Part 3 (3 of 3) • 02. "The Intruder" • 03. "Runner" • 04. "Duet" • 05. "Condemned" • 06. "Trinity" • 07. "Instinct" • 08. "Conversion" • 09. "Aurora" • 10. "The Lost Boys" (1 of 2) • 11. "The Hive" (2 of 2) • 12. "Epiphany" • 13. "Critical Mass" • 14. "Grace Under Pressure" • 15. "The Tower" • 16. "The Long Goodbye" • 17. "Coup d'Etat" • 18. "Michael" • 19. "Inferno" • 20. "Allies" (1 of 3)

Season 3

01. "No Man's Land" (2 of 3) • 02. "Misbegotten" (3 of 3) • 03. "Irresistible" • 04. "Sateda" • 05. "Progeny" • 06. "The Real World" • 07. "Common Ground" • 08. "McKay and Mrs. Miller" • 09. "Phantoms" • 10. "The Return", Part 1 (1 of 2) • 11. "The Return", Part 2 (2 of 2) • 12. "Echoes" • 13. "Irresponsible" • 14. "Tao of Rodney" • 15. "The Game" • 16. "The Ark" • 17. "Sunday" • 18. "Submersion" • 19. "Vengeance" • 20. "First Strike" (1 of 3)

Season 4

01. "Adrift" (2 of 3) • 02. "Lifeline" (3 of 3) • 03. "Reunion" • 04. "Doppelganger" • 05. "Travelers" • 06. "Tabula Rasa" • 07. "Missing" • 08. "The Seer" • 09. "Miller's Crossing" • 10. "This Mortal Coil" • 11. "Be All My Sins Remember'd" • 12. "Spoils of War" • 13. "Quarantine" • 14. "Harmony" • 15. "Outcast" • 16. "Trio" • 17. "Midway" • 18. "The Kindred", Part 1 (1 of 2) • 19. "The Kindred", Part 2 (2 of 2) • 20. "The Last Man" (1 of 2)

Season 5

01. "Search and Rescue" (2 of 2) • 02. "The Seed" • 03. "Broken Ties" • 04. "The Daedalus Variations" • 05. "Ghost in the Machine" • 06. "The Shrine" • 07. "Whispers" • 08. "The Queen" • 09. "Tracker" • 10. "First Contact" (1 of 2) • 11. "The Lost Tribe" (2 of 2) • 12. "Outsiders" • 13. "Inquisition" • 14. "The Prodigal" • 15. "Remnants" • 16. "Brain Storm" • 17. "Infection" • 18. "Identity" • 19. "Vegas" • 20. "Enemy at the Gate"

See also: Stargate • Stargate SG-1 • Stargate: The Ark of Truth • Stargate: Continuum • Stargate Universe • Kino webisodes • Stargate Origins