3) GLaDOS (Genetic Lifeform and Disc Operating System) from Portal
Who doesn’t love a sarcastic and murderously overbearing AI program that massacres a whole research facility of humans?
The ever popular antagonist of the innovative physics/FPS game portal, GLaDOS’s combination of insults and goading coupled with her detachedly computerised vocalisation made for an extremely charming and hilarious villain. And the fact that she sings a passive-aggressive congratulatory song to you after you defeat her only makes you love her more.
You only have to look to deviantart and tumblr for fanart dedicated to her, even though for all intents and purposes she is shaped like a gigantic webcam, albeit a homicidal one. Some imaginative artists have even created humanoid interpretations of her, and this being the internet, some of them are of course mildly NSFW.
4) Hal 9000 from 2001: A Space Odyssey
Created by Arthur C. Clarke and immortalised in Stanley Kubrick’s 2001: A Space Odyssey, HAL 9000 was the A.I. aboard the Discovery One Spacecraft that goes rogue and tries to kill the entire crew while making it look like an accident, all while maintaining its overly-calm and soothing disposition.
Physically represented by an almost all-knowing red-television camera eye, it starts to malfunction - and when the crew conspires to disconnect it, it reads their lips to discover their intent, before becoming every astronaut’s worst nightmare.
If there ever was an argument not to automate and centralize your home, HAL 9000 is it. HAL’s design has also gone on to influence the look of many other evil AIs, including GLaDOS as well as the Auto, the ship computer of the AXIOM in WALL-E.
5) Ash from Alien
What’s scarier than a person that you don’t know is evil until he tries to shove a rolled-up spank mag down your throat? Maybe an acid-spitting Alien that bursts out of chests, but that’s not the point. Ash appears to be a really nice and soft-spoken human being until he tries to kill Sigourney Weaver (which is a dead giveaway really, no man on earth would try to do that), and gets brained, decapitated, reactivated and aburi-ed for his efforts.
As it turns out, he was an android, programmed to be evil, for the purposes of evil scientific data collection. Maybe it was just karma for all the animal testing we’ve done. Nevertheless, Ash is a terrific villain because the worst kind of monster, is a monster that looks just like everyone else.
6) Gort from The Day The Earth Stood Still
Okay, it’s Gort not Groot, for you dyslexics out there. Gort was probably one of the earliest cinematic portrayals of any kind of evil robot, although in essence it was not actually very evil at all.
However, acting out of his protective programming, he does end up incinerating a bunch of tanks and soldiers. But if intentions could level mountains, the Himalayas would be a pleasant afternoon stroll - meaning that the image of Gort shooting lasers out of its eye became the most frightening memory of human-robot interaction for decades after The Day The Earth Stood Still was released in 1951. Boy, we sure scared easy back then.
In the 2008 version, G.O.R.T stood for Genetically Organized Robotic Technology, which was probably the best backronym ever created for a nonsense word.