Star Trek's One Hit Wonder Alien Species

These aliens left an impression after only one episode!

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Star Trek's One Hit Wonder Alien Species

When it comes to Trek aliens, the Klingons are as ubiquitous as the Beatles, while the Ferengi are more of “Top 40” choice, the Andorians are like an indie band, and the Romulans are whatever type of music you hate the most. But what about the one-hit wonder alien races—the species that only appeared in one episode (or movie), but who we still think about all the time? Some looked unique, others communicated or reproduced differently, and many taught us important lessons about our own humanity. Here are some of our favorite one-hit wonder species.

Star Trek: Discovery streams exclusively on CBS All Access in the United States and is distributed concurrently by CBS Studios International on Netflix in 188 countries and in Canada on Bell Media’s CTV Sci-Fi Channel and OTT service Crave.

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10. The Nibirans from Star Trek Into Darkness

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10. The Nibirans from Star Trek Into Darkness

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9. The Kradin From Star Trek: Voyager's "Nemesis"

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9. The Kradin From Star Trek: Voyager's "Nemesis"

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8. Tosk From Star Trek: Deep Space Nine's "Captive Pursuit"

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8. Tosk From Star Trek: Deep Space Nine's "Captive Pursuit"

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7. The Children of Tama From Star Trek: The Next Generation's "Darmok"

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7. The Children of Tama From Star Trek: The Next Generation's "Darmok"

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6. The Horta From Star Trek: The Original Series' "The Devil in the Dark"

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6. The Horta From Star Trek: The Original Series' "The Devil in the Dark"

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5. The Kobali From Star Trek: Voyager's "Ashes to Ashes"

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5. The Kobali From Star Trek: Voyager's "Ashes to Ashes"

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4. The Gormagander From Star Trek: Discovery's "Magic to Make the Sanest Man Go Mad"

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3. The Flying Parasites From Star Trek: The Original Series' "Operation — Annihilate!"

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3. The Flying Parasites From Star Trek: The Original Series' "Operation — Annihilate!"

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2. The Cheron From Star Trek: The Original Series' "Let That Be Your Last Battlefield"

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2. The Cheron From Star Trek: The Original Series' "Let That Be Your Last Battlefield"

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1. Armus From Star Trek: The Next Generation's "Skin of Evil"

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1. Armus From Star Trek: The Next Generation's "Skin of Evil"

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