Nastiest Aliens of All Time, Ranked

Deceptive, deadly, or just darned ugly
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  1. Deceptive, deadly, or just darned ugly
  2. 24) The Daleks, Doctor Who universe
  3. 23) Sil, Species (1995)
  4. 22) Rancor, Return of the Jedi (1983)
  5. 21) Klaatu, The Day The Earth Stood Still (2008)
  6. 20) The Decepticons, Transformers (2007)
  7. 19) Parasitic Aliens, Dreamcatcher (2003)
  8. 18) The Colonists, the X-Files (1993)
  9. 17) Arachnids, Starship Troopers (1997)
  10. 16) Martians, Mars Attacks (1996)
  11. 15) The Alien Thing, The Thing (1982)
  12. 14) The Blob from The Blob (1988)
  13. 13) Aliens from Independence Day (1996)
  14. 12) Aliens, They Live (1988)
  15. 11) Aliens, War Of The Worlds (2005)
  16. 10) Visitors, V (2009-2011)
  17. 9) The Strangers, Dark City (1998)
  18. 8) Precursors, Pacific Rim (2013)
  19. 7) Romulans, Star Trek franchise
  20. 6) Cylons, Battlestar Galactica (2004-2009)
  21. 5) Borg, Star Trek universe
  22. 4) The Bug, Men In Black (1997)
  23. 3) Yautja, Predator (2004)
  24. 2) Xenomorph, Alien franchise
  25. 1) Weeping Angels, Doctor Who universe
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Deceptive, deadly, or just darned ugly

Movies and TV shows are filled with tales of aliens who kidnap humans, experiment on them, impregnate them, or just plain get up in their terrestrial business.

But some have a higher creep factor than others: They hide in plain site, and do it well. They want to colonize us, but they don't mind making us suffer for a few generations first. Or they just remind us of the venomous insects that scare the hell out of us right here on Earth.

Here's our list of aliens who, for us, go way beyond merely unsettling.

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