Star Trek: Voyager was a series of peaks and valleys, swinging for the fences every week and scoring some of the franchise's very best episodes as well as a few of the absolute worst. Season 4, Episodes 8 and 9, "Year of Hell" consistently ranks among the very top, demonstrating what the show was capable of when everything was firing on all cylinders. It features a fascinating sci-fi concept, as well as a terrific antagonist in Kurtwood Smith's Annorax, who might be one of the saga's biggest monsters. He discovered how to manipulate the timeline by erasing entire species from existence in order to achieve a desired outcome.
Source：https://www.cbr.com/star-trek-voyager-annorax-greatest-villain/
