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"If you travel far enough you will eventually meet yourself."

- Jean-Luc Picard (2365)
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Doppelgänger was a word from the German language which meant an exact duplicate of a living person. The term doppelganger has been used throughout history, most often when someone met an identical copy of themselves who was not a biological twin. Miles O'Brien, Harry Kim, and Naomi Wildman were replaced by doppelgängers of their respective "originals" after they died. (DS9: "Visionary", VOY: "Deadlock")

Physical duplicates

James T. Kirk


Stavos Keniclius

Jean-Luc Picard

William T. Riker

Because the split between signals resulted in an equal distribution of Riker's transporter pattern, both of them had an equally legitimate claim to being the "real" William T. Riker, however it can be argued that "Thomas" is the real Riker as the transporter chief aboard the Potemkin used a second beam signal to retrieve the current person known as William T. Riker while the original beam signal rematerialized on the planet surface.

Katherine Pulaski

Miles O'Brien

  • Miles O'Brien was killed in 2371, after becoming infected with delta-series radioisotopes following an accident aboard Deep Space 9. He was replaced by his future self from a few hours later, making the current O'Brien a doppelgänger of the "original." (DS9: "Visionary")
  • A replicant of O'Brien was created by the Parada government, possibly to assassinate someone at the upcoming peace talks on the station between the government and rebel forces. This O'Brien died never knowing he wasn't the "real" one. (DS9: "Whispers")

B'Elanna Torres

USS Voyager

Voyager divergence field

Graphic of Voyager being duplicated by a subspace divergence field

Harry Kim

  • The "real" Harry Kim was killed on Voyager when he was pulled through a hull breach on deck 15. He was replaced by the other Harry Kim from the "second" Voyager, making the current Harry a doppelgänger of the "first." (VOY: "Deadlock")

Naomi Wildman

  • The "real" Naomi Wildman died of complications due to hemocythemia. She was replaced by the "second" Naomi Wildman for the other Voyager, making the current Naomi a doppelgänger of the "first." (VOY: "Deadlock")

Iliana Ghemor

(DS9: "Second Skin")


Mimetic simbiots

Cellular metamorphosis



Coalescent organism


The Silver Blood


See Illusory people.


Mirror universe

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