* The fourth movie. His Shadow can be ''creepy.'' A number of episodes, like "Twilight", have a genuinely unsettling feel of impending doom.
* "Norb" as well; those Mantrid Drones were bloody creepy as hell. Especially noise they made flying around inside Lexx.
* The whole "organ harvesting" scene in "I Worship His Shadow" counts as this, especially considering the unfortunate victims are ''alive'' during the process.
* Brizon's life support tank. Ugh.
* The queen worm in "Eating Pattern" is pretty freaky, mostly due to the [[UncannyValley eerie-looking Wist face]] on the end of her tentacle-tongue-thing. Heck, the mere concept of the worms from this episode is just plain disturbing.
* Giggerota's tongue-with-a-sharp-toothed-mouth-on-the-end-of-it. That is all. Also she served as the prime nightmare fuel of Stanley Tweedle in the episode "Patches in the Sky."
* Stan's [[CruelAndUnusualDeath intended punishment]] in "Stan's Trial". *shudder*
* Imagine being a part of "Lafftrack's" [[AndIMustScream studio audience]].
** Or working the bellows on Fire.
* The Web in "The Web/The Net", especially with scenes of an ''obviously'' possessed Stan. Also, that horrible, gigantic space spider will probably be enough to freak out most arachnophobes.
* [[spoiler:Zombie!Xev]] in "Twilight".
* Prince losing his temper in "Fire and Water" can be extremely jarring. "'''You are not important!'''"
* The prisoners on the crashed transport in "791" have had their hearts removed and their bodies put on life support to make sure they can't escape. The worst part? [[AndShowItToYou They're fully conscious when their hearts are removed]].
* How Lexx looks to anyone outside the crew. It's a biological, insectoid Planet Buster ship being stalked by a creepy undead assassin who periodically goes crazy and a carnivore xenomorph plant. Essentially every space horror trope rolled into one.
* 790 became crazier and more antisocial as the show went on - {{Flanderization}}, or is Love Slave programming just that powerful?