26) Hot Alien Women, Dude, Where’s My Car? (2000)

Their goal is to destroy not the world, but the whole universe. And if you get in their way, they’ll morph into a pissed-off, man-eating giant. Photo: 20th Century Fox

25) The Daleks, Doctor Who universe

The Daleks may look like salt and pepper shakers, but they’re mean as hell and colder than Pluto. Obsessed with perfection (which they define as themselves) their narcissism is murderous, which is why the war cry of “exterminate” still strikes fear into the hearts of many a British child (and adult nerd). Photo: BBC

24) Sil, Species (1995)

She’s the femme fatale with a heart of corrupted DNA. Beauty only goes skin-deep, and underneath that skin is a man-eating nightmare of a monster. Photo: MGM

23) Rancor, Return of the Jedi (1983)

They look like a cross between a mutant dinosaur and the creature from the deep and They. Will. Eat. You. Photo: Lucasfilm

22) Klaatu, The Day The Earth Stood Still (2008)

He’s the harbringer of doom, and he has has a giant robot minion. Also, let’s be honest: Keanu Reeves’ wooden acting is downright horrifying. Photo: 20th Century Fox

21) The Decepticons, Transformers (2007)

Sure, some of them have a sense of honor. And their overall goal is understandable: winning a war on their home planet. But they’re also arrogant, conflict-happy, brutal and merciless. Plus, their red eyes clash with their purple facial insignia — a tackiness that’s truly terrifying. Photo: Paramount Pictures

20) The Alien, Super 8 (2011)

You never really see the alien too clearly, but you get the sense it’s not exactly friendly. (It eats people.) Also, let’s be honest: The fact a glorified Rubix-Cube ship piece triggers the destruction of a small town makes us never want to do math games again. Photo: Paramount

19) Parasitic Aliens, Dreamcatcher (2003)

Somehow, this cross between a slug and a vagina dentata takes over a small town, and it doesn’t even have legs. Major evil points, slugtata. Photo: Warner Bros.

18) The Colonists, the X-Files (1993)

These aliens aren’t fresh-off-the-UFO; they were living on Earth at the same time as the earliest humans. So if they just wanted claim some Earth land for themselves, they may have an argument. But colonizing the whole dang planet? Wiping out most of the human race? That’s just greedy. And — yes — evil. Photo: FOX

17) Arachnids, Starship Troopers (1997)

To be honest, we weren’t sure whether to put the Bugs on this list. After all, it was we humans who came to their planet of Klendathu, getting the natives all het up.

Then again, the Arachnids don’t seem to know the meaning of diplomacy, or even targeted killing; instead they prefer to wipe out millions of humans at a time, via well-aimed asteroid. Also: Their favorite one-on-one murder method is, apparently, sticking a proboscis into a person’s skull and drinking a brain like a milkshake. Even a firing squad has to be more merciful than that. Photo: TriStar Pictures

16) Martians, Mars Attacks (1996)

They’re Ghost Rider crossed with a mutated version of the Brain from Pinky and The Brain, and we’ll never watch that cartoon again now without thinking of this comparison, and that’s evil in and of itself. Photo: Warner Bros.

15) The Alien Thing, The Thing (1982)

Campy 80s effects aside, it looks like a weird mutant spider version of the actor it bursts out of, like a cloning gone so, so wrong. Nightmare Darwin, indeed. Photo: Universal Studios

14) The Blob from The Blob (1988)

It’s slime that devours you, and personally, we think the ’88 remake version is more nefarious, because a) it looks like bloody pus (you’re welcome) and b) it glows. so it looks almost like it’s happy while smother-eating you to death. Photo: Sony Pictures Home Entertainment

13) Aliens from Independence Day (1996)

Huge brains, creepy telepathic powers, seemingly undefeatable technology, and gooey tentacles make these guys pretty darn wet-your-pants. We’d definitely stay home and lock the doors if they showed up. Photo: 20th Century FOX

12) Aliens, They Live (1988)

You can’t see them unless you put on special sunglasses, and then OMFG THEY’RE EVERYWHERE AND THEY’RE BLUE SKULLS THAT HAVE BLOODY SPOTS. Sneakily taking over Earth, Animorphs-style. gets major evil street-cred. Photo: Universal Studios

11) Alien Machines, War Of The Worlds (2005)

They’re robots designed to look like huge insects, and they want to nuke Earth, and they try to kill Dakota Fanning, which is just wrong, people. Photo: Paramount

10) Visitors, V (2009-2011)

Beautiful, technologically superior, and “they come in peace.” Yeah. Right. Sinister has never been so sneaky. Photo: ABC

9) The Strangers, Dark City (1998)

Ghostly, pale, dressed in futuristic-noir trench coats, these controllers of a mysterious underworld dominate reality while the good guys sleep. It’s The Matrix before The Matrix, but moodier, and with way more drama … and weird cult-chants. Photo: Warner Bros.

8) Kaiju, Pacific Rim (2013)

Dinosaurs on steroids, these creatures are as striking as they are scary. Trust Guillermo del Toro to give us a mega-monster movie with disturbingly complex production design. Photo: Warner Bros.

7) Romulans, Star Trek franchise

Some Romulans seem more reasonable than others. Some have been open, for example, to reunification with Vulcan. But for every one of those level-headed Romulan, there’s some bat-guano insane one who needs to torture and gaslight a Starfleet officer, or just go on a hate-filled revenge spree. No thanks. Photo: Paramount

6) Cylons, Battlestar Galactica (2004-2009)

They look like us. Like, exactly like us. You could be one of them, and just not know it. That face staring back in the mirror? Could be just waiting to help destroy all of humanity in the name of a purity-obsessed cylon religion … and you wouldn’t know it. Talk about a mind-frack. Photo: Syfy

5) Borg, Star Trek universe

At first, the Borg might seem like a silly foe. Who flies around in a ship shaped like a cube? Who does that?

But then … the cube outruns you. Then it takes over your ship. And then its relentless occupants start kidnapping your human friends one by one, forcibly drilling into their heads and limbs, turning them — oftentimes slowly — into cyborgs. Even babies are not exempt from this terrifying fate. Photo: Paramount

4) The Bug, Men In Black (1997)

It’s a roach the size of a small house, and it can wear your corpse as a zombie suit disguise. Yuuuuuuuuuuck. Also, killing people who are just sitting there, eating pierogis? Super mean. Photo: Columbia Pictures

3) Yautja, Predator (2004)

In gamerspeak, these aliens are pretty OP: They can cloak, they have an array of weaponry, they have flushing hounds with freaky looking spines, and they’re battle-hardened thanks to a long-standing blood feud on their home planet.

Their only saving grace: Their code of honor, which prevents them from killing children, the pregant and the unarmed. Photo: 20th Century FOX

2) Xenomorph, Alien franchise

Codes of honor? Not really. Unless you happen to be pregnant with a baby chest-burster, these disgusting creatures will definitely eat you … or worse. Photo: 20th Century FOX

1) Weeping Angels, Doctor Who universe

They look like statues. Nice statues, even. Statues of angels. But! Don’t blink. Don’t turn off the lights. Don’t even look away … or they’ll rush you. And once they reach you, you’re dead. They don’t drink your blood. That would be too kind. With one touch, a Weeping Angel can send a victim into the past, to a time before he or she was even conceived, and then consume the “potential energy” that would’ve become that person.

No wonder the Doctor has called Weeping Angels “psychopaths” and “the deadliest, most powerful, most malevolent life-form ever produced. Photo: BBC