Star Trek: 12 Subplots That Went Nowhere

Along with the Kazon, the Vidiians were positioned early on to be Star Trek: Voyager's main antagonists in the Delta Quadrant. The Vidiians were disgusting, devious, hellbent on stealing the organs of innocent starship crews to save themselves from the Phage, a disease killing thousands of their race. Like all good Trek villains though, the Vidiians weren't evil, they were multi-faceted, occasionally even sympathetic (as in "Lifesigns" when the Doctor fell in love with a Vidiian doctor, Danara Pel, who saved Captain Janeway and Commander Chakotay from sexy social distancing a few episodes later).

But unlike the Kazon, whose story arc gradually built and was fully resolved by the end of Voyager's second season, the Vidiians never really got the compelling story or climax they deserved.

Voyager simply flew out of range of the Vidiians' organ foraging and the aliens were mostly forgotten for two full seasons until the show washed its hand of them entirely in season five's "Think Tank". That episode explained that the titular Think Tank had cured the Phage, fully resolving the Vidiaans' entire raison d'être and doing it entirely off screen.