Next time your neighbors bang on the walls or let their dog bark all night, stay cool. Count your blessings. At least you don't live next door to these creepy neighbors from movies and TV, who've moved in for the 18th of our 31 specials for the 31 days of Halloween.

And come back tomorrow at noon to check out The Simpsons' most terrifying Treehouse of Terror moments.

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Mr. Turner (David Morse) in Disturbia

It's probably best not to get involved with this guy. If you try to stop him from killing people and hiding the bodies, he'll just come after your MILFy mom and frame your friends for harassing him.

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Kurt Dussander (Ian McKellen) in Apt Pupil

What's creepier than a Nazi living next door? How about Ian McKellan sieg-heil'ing it up with all his Gandalf-ian gravitas. Don't ask him to try on the uniform. Nothing good can come from that.

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Eddy Otis (Kevin Spacey) in Consenting Adults

Before Kevin Spacey was the famous serial killer, criminal mastermind or Lex Luthor, he was the neighborhood wife swapper of this forgotten '90s thriller. That might sound fun to progressive couples, but the trick is Eddy would kill his wife and frame you for it. Yeah, how's monogamy sound now?

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Mathilda's family from The Professional

We only get to see young Mathilda's family briefly before Stansfield (Gary Oldman) comes in blasting them away. But we can imagine they were into all sorts of trouble if they got involved with that guy. If you're just a hitman minding his own business, you definitely don't need that trouble.

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Vic and Ramona (Dan Aykroyd and Cathy Moriarty) in Neighbors

Think this is just a comedy? Earl Keese's (John Belushi) new neighbors are so wild and crazy they end up driving him to full-scale war. Actually, maybe seeing Belushi play the "normal" one, in his final film, is scarier.

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The Klopeks in The 'Burbs

This must be the one you were thinking of when you clicked on this list. For a movie everyone hated at first, it's still the first name in creepy neighbors. Everyone thought Ray Peterson was crazy for obsessing about the Klopeks, and everyone thought Tom Hanks was crazy for making the movie. Now that he's Mr. Credible Oscar Winner, it's nice to revisit his dark comedy past.

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Old Man Marley (Roberts Blossom) from Home Alone

Sure, Marley turned out to be a nice old man with family issues, but did he have to stalk down the street with that shovel? I mean, honestly. That's not going to get your son back.

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The house from Monster House

Geez, it's hard enough to deal with creepy people living next door. There's not much you can do when the whole house is the problem. Possessed by the spirit of Constance (Kathleen Turner), this neighborhood house actually eats people. Yeah.

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Charlie Meadows (John Goodman) from Barton Fink

Everything about the Hotel Earle is creepy, with the slowly peeling wallpaper and the neighbor making noise. When he helps you dispose of mysteriously murdered bodies, that's your first sign that he's not all there. Don't hang on to that box for him—just say no.

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Abel Turner (Samuel L. Jackson) from Lakeview Terrace

If you move in next door to Samuel L. Jackson, you'd better just do whatever he says. If he's a cop, you're not going to get anything by him. When he politely suggests you not smoke next to his house, he's really saying, "Get these motherf***in' butts off my motherf***in' lawn!"

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Carter Hayes (Michael Keaton) from Pacific Heights

You think you're going to make a little extra cash renting out the downstairs room. Then you end up getting a creep who breeds cockroaches. Worse, when he doesn't pay his rent, he finds the legal loophole that keeps you from kicking him out!

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Sid from Toy Story

We only saw the toys' perspective on the neighbor who mutilates dolls and assembles his own mixed-and-matched creatures from the parts. Imaging living next door to his noisy rocket launches, or just having to deal with your traumatized kid after the bully rips apart that $50 toy you fought the other parents in line for.

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Buffalo Bill (Ted Levine) from Silence of the Lambs

All serial killers just live right next door to someone. They always say he was quiet and kept to himself. At least Bill went away from home to find his victims, so you're probably safe if you live next door. But just hope he shuts the windows when he cranks up the music and does his girl dance.

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The women of The Stepford Wives (1975)

You move in to Stepford and every neighbor is creepy, at least the fairer half. They've all been replaced by robots to serve their husbands. Hey, to each their own, but it's only a matter of time before your husband jumps on the robowife bandwagon.

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Mom and Dad (Wendy Robie and Everett McGill) from The People Under the Stairs

My personal favorite horror movie of all time is based on the notion that every neighborhood has that one house you're told to stay away from. In this case, that's because the owners are a Reagan-era couple with a booby-trapped house. They kidnap kids to make the perfect nuclear family, but when they don't measure up, Mom and Dad just throw 'em in the basement and feed them raw meat.

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Ugly Naked Guy from Friends

Rarely seen but often referred to, we know that Ugly Naked Guy likes to keep his windows open when he walks around nude, and Monica's apartment has a direct line of sight. Sadly, backstory revealed that Ugly Naked Guy was once Cute Naked Guy until he let himself go.

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Jerry Dandridge (Chris Sarandon) from Fright Night

If you saw the neighbor lugging a coffin into his house and biting the necks of his lady guests, most people would just think he was some freak. Good thing Charley Brewster (William Ragsdale) sussed out that Dandridge is an actual vampire so he could spare other local hookers from becoming dinner. Too bad Evil Ed didn't make it through the night.

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The Castevets (Ruth Gordon and Sidney Blackmer) from Rosemary's Baby

Ladies, if you're having a baby, just go to your normal doctor. Don't let the neighbors talk you into their Satan gynecologist. Also, don't eat their supernatural roofie candies.

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Lars Thorwald (Raymond Burr) from Rear Window

Well, who could make a neighbor creepier than Hitchcock? Without even seeing anything graphic, we all knew Thorwald killed his wife and hid the body, but the creepy kicker was that he didn't even feign distaste when a dead dog turned up. Note to creeps: If you like dead dogs, just pretend you don't. It'll help you pass.

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And while you're in a Halloween state of mind, why not check out:

Day 1: 19 amazing Star Wars pumpkins

Day 2: Our 9 favorite crazy zombie kills of all time (video)

Day 3: 10 scariest Stephen King novels

Day 4: 14 great Cthulhu toys that make devouring souls fun

Day 5: 15 haunted cereals that will scare your dentist

Day 6: 20 great costumes to dress up your pet

Day 7: 21 (mostly) sexy female stormtroopers (NSFW)

Day 8: 9 movie and TV clowns that scared the hell out of us

Day 9: 10 creepy movie kids even Angelina Jolie wouldn't adopt

Day 10: 6 most awesome Stephen King horror films (plus 3 that sucked)

Day 11: 16 horror movie posters so gruesome they make our eyeballs bleed

Day 12: 16 hot movie and TV vampires who turn us into willing victims

Day 13: 20 awesomely hot Slave Leia costumes (slightly NSFW)

Day 14: 14 lamest horror movie killer costumes (What were they thinking?)

Day 15: 9 of the grossest, goriest X-Files creatures

Day 16: 11 splatterific exploding head scenes from the movies

Day 17: 15 of the most disgusting Halloween candies you can buy

Day 19: 11 most disturbing Treehouse of Horror segments from The Simpsons

Day 20: 9 rampaging space zombies hungry for our sci-fi brains

Day 21: 10 most nightmarish movie prom nights

Day 22: 11 scary, goofy and just plain revolting movie possessions

Day 23: 13 kick-ass moments from Buffy the Vampire Slayer

Day 24:13 real haunted houses you can visit in the U.S.

Day 25: 15 ghoulish apps you can download to your iPhone

Day 26: 20 hot film and TV witches and warlocks that cast a spell on us

Day 27: The 10 most truly, utterly evil things in sci-fi

Day 28: The 15 cursed movie objects you NEVER want to own

Day 29: 14 most twisted original Twilight Zone twist endings

Day 30: 16 sci-fi costumes that would definitely get you fired (NSFW)

Day 31: 12 awesome sci-fi Halloween moments, real and fake