- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
A never-named race of tiny, crustacean-like intelligent beings who attempted to conquer the Federation by infiltrating Starfleet and taking over the bodies of high-ranking officers in 2364, an effort halted by Captain Jean-Luc Picard and exposed by Admiral Norah Satie. The parasites are thought to be extra-galactic.