1 Blue Fetus Thing (Courage the Cowardly Dog)
Man is courage first dream in perfect scary
Courage the cowardly dog could be too scary for kids
Anything from this show is terrifying.
2 Him (PowerPuff Girls)
His voice is more scarier than his appearances. - zxm
Him is a good character. But he's no match for mojo jojo.
The devil - Officialpen
She/he's so scary they didn't give 'him' a name
3 Red Guy (Cow and Chicken)
4 CatDog (CatDog)
Just because he's a "freak", doesn't mean that he's scary.
CatDog isn't scary. - RalphBob
American cartoons went strange in the 90s.
5 Arnold's Cousin (Hey Arnold!)
Arnie is not that weird.
Trust me, I've seen a lot of weird in my life. A LOT.
Arnie is really weird. No wonder his first appearance was in an episode called "weird Cousin".
You mean Arnie? - RalphBob
6 Hexadecimal (ReBoot)
Changes her expressions extremely and has a perversion relationship on bob. Shes not just adds the tense, she has perverted connections with bob which adds the uncomfortable factor to her
7 Rocko (Rocko's Modern Life)
Rocko is the eponymous fictional character of the cartoon Rocko's Modern Life and the comic book series of the same name.
8 Eugene H. Krabs (Spongebob Squarepants)
Eugene H. Krabs, or simply Mr. Krabs, is a fictional character in the American animated television series SpongeBob SquarePants.
Rich, greedy, mean, horrid, bad, cruel, vile, cheap.
This crybaby manchild is not scary - bobbythebrony
9 Cell (Dragon Ball Z)
Cell is a fictional character in the Dragon Ball series by Akira Toriyama. He is the main antagonist of the Android Saga, being an android/artificial life form from the future, whose goal is to become "perfect" via absorbing Androids 17 and 18 and becoming the strongest fighter in the universe.
He is really scary because he's an alien who sucked people's flesh (especially an innocent man holding a cash) with his pointy tail.
10 Bill Cipher (Gravity Falls)
Bill Cipher is a triangular dream demon formerly existent only in the mindscape who wished to gain access to the real world. He has been running amok in Gravity Falls, Oregon since being summoned by Stanford Pines over thirty years ago. He is known for his mysterious demeanor and sadistic humor. He ...read more.
How I thought it went.Boss: O right people, we need ideas for a villain for gravity falls. Have any ideas. Employee: How about a triangle. Everyone: laughs. Boss: okay okay why the heck would you think he would be a good idea. Employee: he has one eye, wears a top hat and bow tie and has the ability to shuffle someone's face, mess with time, gravity, and physics, make people insane, turn people to stone, distort the intro of the show and create unholy abominations and only desires chaos, death, and creating a throne of misery of frozen people. Everyone: gasps and one of them walks out of the room. Boss: an...anyone have any other ideas. No. Then this villain will do then.
He tortures kids, blackmails, drives people insane... in short I'd never put HIM on my guest list...
Discord's worst nightmare: a rival with creepypasta material
He may be funny but also creepy.
11 Big Baby (Rugrats)
Now this I can agree on
12 The Groke (Moomin)
The thing that scared me was the sounds it makes
13 Black Goku (Dragon Ball Super)
14 Billy (The Grim Adventures of Billy & Mandy)
How exactly is Billy scary? That is, unless he's perceived as scary by Grim, considering he and Mandy are probably considered the bane of his existence. - ModernSpongeBobSucks
I guess his stupidity is scary?
Now that I think about it, it kinda' is...
15 King Ramses (Courage the Cowardly Dog)
King Ramses is in my opinion the scariest cartoon characters ever
How the hell is king ramses not in the top 5
16 Satan (The Adventures of Mark Twain)
He moves creepy!
17 Lola Loud (The Loud House)
Lola Loud is a fictional character from The Loud House and the third youngest child of the Loud Family and Lana's younger twin sister, Lola is arrogant, smart mouthed, spoiled, and is a tattle-tale, like Lori despite her selfish behavior deep down she's compassionate, she shares a room with her twin ...read more.
Me: (lays in bed) what a good day
Lola: Hi Carson
Me:(picks up ak47) go away (shoots Lola)
18 Dora (Dora the Explorer)
Dora is the main protagonist in the show "Dora the Explorer". Her main occupation is exploring with her monkey friend, Boots.
19 Robin (Teen Titans Go!)
Robin, also known as Tim Drake, is a fictional superhero appearing in American comic books published by DC Comics, commonly in association with the superhero Batman.
Ugh, this is SCARIEST cartoon characters, not the most annoying.
20 The Coachman (Pinocchio)
21 Frieza (Dragon Ball Z)
Freeza (Pronounced "Frieza" in the Funimation dub) is fictional character in the Dragon Ball series by Akira Toriyama as the primary antagonist of the Freeza Saga. He is a galactic tyrant who governs the Planet Trade Organization and is feared by the universe for his sadistic and brutal nature. He is ...read more.
22 Nibiru Entity (Scooby Doo: Mystery Incorporated)
23 The Greedy (Raggedy Ann and Andy: A Musical Adventure)
24 Fliqpy (Happy Tree Friends)
25 Berry (Foster's Home For Imaginary Friends)
26 Mariko Kurama (Elfen Lied)
27 The Warden (Superjail!)
28 Bunnicula (Bunnicula)
29 Crud (The New Adventures of Winnie the Pooh)
"A scary Winnie-the-Pooh villain? " Yes...
30 Father (Codename: Kids Next Door)
31 Toffee (Star vs the Forces of Evil)
32 Oblina (AAAHH!!! Real Monsters)
33 Ren Hoek (Ren & Stimpy)
34 Freaky Fred (Courage the Cowardly Dog)
Freaky Fred is a fictional character from the Cartoon Network animated series, Courage the Cowardly Dog.
35 Fluttershy (My Little Pony)
Fluttershy is a female pegasus pony from the 2010 animated TV show My Little Pony: Friendship is Magic. She is a kind pegasus and is very timid and shy. She takes care of the animals. She represents the element of kindness