1 Ren and Stimpy
The Ren & Stimpy Show, often simply referred to as Ren & Stimpy, is an American animated television series created by John Kricfalusi for Nickelodeon.
I saw a review online of"Ren Seeks Help". Need I say more? - Garythesnail
Ren Seeks Help is terrible. The original Ren & Stimpy was actually quite lovable. - redhawk766
Creepy and gross. - RaccoonCartoon
It kinda scared me when I was little.
2 Regular Show
Regular Show is an American animated television series created by J. G. Quintel for Cartoon Network that premiered on September 6, 2010. The series revolves around the lives of two friends, a blue jay named Mordecai and a raccoon named Rigby—both employed as groundskeepers at a local park.
Do you know why this is a creepy cartoon. BECAUSE OF THE CHARACTERS AND THE JOKES THAT THEY LOOK VERY WERID AND NOT APPROPRIATE. I swear Cartoon Network, why did you put a show about two morons that work in the park and go to strange adventures that were full of drugs and porn jokes. Well, that happen to me that I watch the episode where two guys were planning for a movie night and the electrically had created zombies so they can ruin the movie. Just, what the heck why everybody wanna to show it like that and ban parents from children. Ignore this cartoon and watch something better like MLP, fairly godparents, SpongeBob, and avatar.
3 Courage the Cowardly Dog
Courage the Cowardly Dog is an American animated horror comedy television series created by John R. Dilworth for Cartoon Network as part of the network's Cartoon Cartoons block.
I used to never understand why my sister was scared of this show. One day, I found out about the creepiest episodes online and I realised. - RaccoonCartoon
Wow! You Actually Hate This Show? Wow... Just Wow!
I actually like it. But the thing is, it was one of the sickest, creepiest cartoons I could ever watch. - redhawk766
Even when I was little I hated this show, but my brother watched it so I watched it because I don't know why. - funnyuser
4 Powerpuff Girls
The Powerpuff Girls is an American animated television series created by animator Craig McCracken for Cartoon Network.
When Mojo Jojo's head broke and part of his brain was exposed, I really thought something was wrong with this one. - Kiteretsunu
I hope you're talking about the 2016 version. - kcianciulli
5 Adventure Time
Adventure Time is an American animated television series created by Pendleton Ward for Cartoon Network. The series follows the adventures of a boy named Finn (voiced by Jeremy Shada) and his best friend and adoptive brother Jake (voiced by John DiMaggio)—a dog with the magical power to change shape ...read more.
Ok it's quite dark but I'm a super fan of this show because marceline is my love
6 Foster Home for Imaginary Friends
Two words. Berry Scary.
7 Ed, Edd, N Eddy
8 Betty Boop
Betty Boop is an animated cartoon character created by Max Fleischer, with help from animators including Grim Natwick.
How many kids in this century would have even seen this on television
Has anyone here seen Betty Boop's Big Boss? Jeezus.
9 The Grim Adventures of Billy & Mandy
The Grim Adventures of Billy & Mandy (also known as Billy & Mandy) is an American animated television series created by Maxwell Atoms for Cartoon Network, and is the 14th of the network's Cartoon Cartoons (albeit namely when it was part of Grim & Evil; the show is considered separate from Cartoon Cartoons ...read more.
How can anyone not talk about how inappropriate this show can be sometimes?
Season 1 of this show had very creepy credits. You can hear a backwards message. - RaccoonCartoon
This "thing" is just plain gross. I'm kind of like Mandy, though, and it's sometimes funny. So I can't hate it. - redhawk766
10 Rocko's Modern Life
Rocko's Modern Life is an American animated television series created by Joe Murray for Nickelodeon. The series centers on the surreal life of an anthropomorphic Australian-immigrant wallaby named Rocko as well as his friends: the gluttonous steer Heffer, the neurotic turtle Filburt, and Rocko's faithful ...read more.
Wasn't there that really gross episode with Mrs. Bighead? - RaccoonCartoon
Plenty of adult humour.
Not a cartoon and it's SCARY! -Enderman
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12 Invader Zim
Invader Zim is an American animated television series created by Jhonen Vasquez for Nickelodeon. The series centers on an extraterrestrial named Zim from the planet Irk, and his mission to conquer Earth and enslave the human race along with his malfunctioning robot servant GIR.
Umm why do aliens always look like monsters.
YOUR ARGUMENT IS NULL AND VOID.
13 Salad Fingers
One of those cartoons that make you scratch your head, going "Why is this a thing? ".
I saw one episode on Teens React. It was disturbing! - funnyuser
14 SpongeBob SquarePants
SpongeBob SquarePants is an American animated television series created by marine biologist and animator Stephen Hillenburg for Nickelodeon. SpongeBob is currently the most popular show on Nickelodeon, as well as the longest running show, running for 18 years, and is beginning its 11th season. The show ...read more.
If you're reffering to the "new" SpongeBob then I would really agree, but the old show was perfectly fine. - Garythesnail
There's a lot of creepy music, imagery, characters and scenes. - RaccoonCartoon
Rugrats is an American animated television series created by Arlene Klasky, Gábor Csupó and Paul Germain for Nickelodeon.
Considering that the rugrats is about the story of a girl with schizophrenia and her imaginary friends. - TheGrammarPolice
It's good, but Angelica is just one schizoid spoiled brat. - redhawk766
A couple of inappropriate jokes but its fine for kids.
People always make up idiotic theories.
Oh, another one is Homer Simpson has been in a coma since Bart's April Fools Prank.
16 The Marvelous Misadventures of Flapjack
The Marvelous Misadventures of Flapjack is an American animated television series created by Thurop Van Orman for Cartoon Network that premiered in North America on June 5, 2008. It stars creator Thurop Van Orman as the voice of Flapjack, a naive young boy who was raised by a whale named Bubbie and ...read more.
This is so creepy. The cat with no eyes and really uneven teeth looked like something from a horror film. - RaccoonCartoon
17 King Star King
King Star King is an American animated web series created by JJ Villard and Eric Kaplan for Adult Swim. The series aired on the network's online video streaming service Adult Swim Video on June 15, 2014.
This HAS to be #1
18 Happy Tree Friends
Happy Tree Friends is an adult animated flash series created and developed by Aubrey Ankrum, Rhode Montijo, Kenn Navarro and Warren Graff for Mondo Media.
(Sigh) I used to watch this all the time with Steve.-Enderman
19 Mr. Meaty
Mr. Meaty is a Canadian-American television series created by Jamie Shannon and Jason Hopley. The show centers on two lazy teenage boys named Josh Redgrove and Parker Dinkleman, who work at a fast food restaurant.
The puppets are creepy sometimes, a lot of the scenes are creepy, and while the show is still pretty entertaining, so are a lot of creepy shows. - PeterG99
20 Mega Babies
Mega Babies is a Canadian animated series created by the Tremblay brothers, Christian and Yvon, who previously had made the H-B's show SWAT Kats: The Radical Squadron.
Gross. What else to say here? - redhawk766
Pokémon, abbreviated from the Japanese title of Pocket Monsters and currently advertised in English as Pokémon: The Series, is a Japanese anime television series, which has been adapted for the international television markets.
If you was a kid in Japan in the 90s, you could've had a seizure from some episode about Porygon. The Japanese version has guns and an episode James had fake boobs.
It is all Pikachu's fault for making this show inappropriate!
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22 Gravity Falls
Gravity Falls is an American animated television series produced by Disney Television Animation that first aired on Disney Channel, and then on Disney XD from June 15, 2012 to February 15, 2016. The series follows the adventures of Dipper Pines and his twin sister Mabel in the fictional town of Gravity ...read more.
Dad says it's bad.-Enderman
23 My Little Pony: Friendship Is Magic
My Little Pony: Friendship Is Magic is a children's animated fantasy television series developed by Lauren Faust, produced by Hasbro Studios and DHX Media Vancouver . Despite the target demographic of young girls, Friendship Is Magic has also gained a large following of older viewers, mainly young and ...read more.
See:party of one and lesson zero and inspiration manifestation
My little pony not dumb!
24 Justice League
25 Malice in Wonderland
26 Quasi at the Quackadero
27 Sanjay and Craig
Sanjay and Craig is an American animated television series produced by Nickelodeon. The show is about a 12-year-old boy named Sanjay Patel who owns a talking pet snake named Craig.
Breadwinners is a 2014 animated comedy television series produced by Nickelodeon. It is about the adventures of SwaySway and Buhdeuce, two ducks who drive in a rocket van delivering bread to their customers.
I absolutely hate Breadwinners. It's not exactly inappropriate, but it's enough to drive you nuts. - redhawk766
29 Angela Anaconda
Angela Anaconda is a Canadian–American children's television series created by Joanna Ferrone and Sue Rose, the latter of whom who also voices the title character.
I watched this show when I was super young and had a weird dream about it. A few years later, I started to wonder if it actually exists or if it was just a fake show my brain made up in my dream. Turns out, it does exist. It really looks awful. - RaccoonCartoon
Watched this as a child it was weird.
30 The Cramp Twins
Boohbah is a British children's television programme created by Anne Wood. It premiered on 14 April 2003 on ITV in the United Kingdom, followed by its Nick Jr.
32 Allen Gregory
Allen Gregory is an American animated television series that aired Sundays at 8:30 pm on Fox from October 30 to December 18, 2011. The series was created by Jonah Hill, Andrew Mogel and Jarrad Paul.
33 The Brothers Grunt
The Brothers Grunt is a Canadian animated comedy television series by Ed, Edd n Eddy creator Danny Antonucci that originally aired from August 15, 1994 to April 9, 1995 on MTV.
Dirtgirlworld, stylized as dirtgirlworld, is an Australian-Canadian children's television series created by Cate McQuillen and Hewey Eustace of Mememe Productions.
35 Steven Universe
Steven Universe is an American animated television series created by Rebecca Sugar for Cartoon Network. The show's based around a young boy by the name of Steven Universe, who is a hybrid of a gem and a human. He lives with his gem friends, Garnet, Amethyst and Pearl.
36 Star vs. the Forces of Evil
Star vs. the Forces of Evil is an American animated television comedy produced by Disney Television Animation for Disney XD. It was created by Daron Nefcy and developed by Jordana Arkin and Dave Wasson. The series follows teenage magical princess from the dimension of Mewni Star Butterfly and her teenage ...read more.
37 Teddy Ruxpin
38 Fanboy & Chum Chum
Fanboy & Chum Chum is an American 3D CGI animated television series created by Eric Robles for Nickelodeon. It is based on Fanboy, an animated short created by Robles for Nicktoons and Frederator Studios, which was broadcast August 14, 2009 to July 12, 2014 on Random! Cartoons. The series was first ...read more.
I'm talking about the short
39 Planet Sheen
Planet Sheen is an American CGI animated television series. It is a spinoff series in the Jimmy Neutron franchise, focusing on the show's comic relief, Sheen Estevez, as he gets stranded on another planet. The show was hated by critics and fans for not using any of the original cast (besides the obvious), ...read more.
It's creepy all the aliens
40 Butt-Ugly Martians
41 Popee the Performer