1 Dexter (Dexter's Laboratory)
Dexter is a fictional character and the titular protagonist of the Cartoon Network animated series, Dexter's Laboratory.
Dexter hates him for Ripping off his show
Dee Dee: What r you sound Dexter?
Dexter: I am making a atomic bomb to drop on the test house with the help of the PPGs.
Dee Dee:Have fun!
2 Stewie Griffin (Family Guy)
Stewart Gilligan "Stewie" Griffin is a main character from the animated television series Family Guy. Obsessed with violence and matricide, Stewie is the youngest child of Peter and Lois Griffin, and the brother of Meg and Chris Griffin.
3 SpongeBob SquarePants (SpongeBob SquarePants)
SpongeBob SquarePants is a fictional character and the titular character and protagonist of the American animated television series of the same name.
4 Phineas Flynn (Phineas and Ferb)
Phineas Flynn is one of the protagonists of the animated television series Phineas and Ferb. Voiced by Vincent Martella and created and designed by Dan Povenmire, Phineas first appeared along with the rest of the series' main characters in the pilot episode "Rollercoaster." Phineas, along with his stepbrother ...read more.
5 Gumball Watterson (Amazing World of Gumball)
Gumball Watterson is a twelve-year-old blue cat who is prone to causing mischief across the town due to not staying inside of the box. He is fairly egotistical and a veteran snarker; despite this, Gumball has a big heart and is surprisingly selfless. Although Gumball can be intelligent at times, he ...read more.
My Opinion: I Like Gumball and Hate Johnny Test!
I like Gumball but, Johnny Test is insulsting him and I hate Johnny Test because is a bit rip-off of Gumball!
But amazing world of gumball aired in 2011 and Johnny test aired in 2005 - DanteTopTenners
6 Wander (Wander Over Yonder)
7 Rigby (Regular Show)
Rigby is a character from the cartoon Regular Show created by JG Quintel. He's best friends with Mordecai (A talking Blue Jay). Together they slack around and have fun in the park. A place where they work and have the risk of being fired from.
8 Mordecai (Regular Show)
Mordecai is one of the two main protagonists of Regular Show, along with his best friend Rigby. He made his debut in the non-canon short "2 in the AM PM" as a human cashier, who then morphs into a prototype Mordecai-like character with a fanny pack. He later makes his first official appearance in the ...read more.
9 Benson (Regular Show)
Benson Dunwoody is a main character on Cartoon Network's Regular Show. He is a gumball machine, also known as The Park's manager. As the manager, he is the boss of every park worker (with the possible exception of Pops). He has a short temper and has a tendency of yelling at Mordecai and Rigby every ...read more.
Johnny Test insulted him.
10 Lightning McQueen
Lightning McQueen, typically referred to by his surname McQueen, is a anthropomorphic stock car in the animated Pixar film Cars, its sequels Cars 2, Cars 3, and TV shorts known as Cars Toons.
11 Jimmy Neutron (The Adventures of Jimmy Neutron: Boy Genius)
James "Jimmy" Isaac Neutron is a fictional character and the main protagonist of the Jimmy Neutron franchise . He is most notably the main protagonist of the 2001 American 3D computer-animated comic science fiction film Jimmy Neutron: Boy Genius and the main protagonist of the American computer animated ...read more.
12 Bessie Higgenbottom (The Mighty B!)
13 Buttercup (The Powerpuff Girls)
She is the one of the three main characters in the show The Powerpuff Girls. She was first created by Craig McCracken in 1992. She has short raven hair and green eyes with a green dress. She is known as the "toughest fighter" for her tomboyish attitude, being aggressive, and her love for fighting crime. ...read more.
14 Ralph (Wreck-It Ralph)
He'll crush johnny Test with his gigantic fists.
15 Twilight Sparkle
Twilight Sparkle is the primary main character of My Little Pony Friendship is Magic. She is a female unicorn pony who transforms into an Alicorn and becomes a princess in Magical Mystery Cure.
16 Gene Belcher (Bob's Burgers)
Gene Belcher is the middle child on the show Bob's Burgers. He loves music and has a Casio keyboard that he uses to write songs and play back fart sounds.
17 Glenn Quagmire (Family Guy)
Glenn Quagmire, often referred to as just Quagmire, is a character from the animated television series Family Guy.
I saw a pic of Quagmire punching Johnny test on Devianart - BreadWinnersSuck
18 Angry Video Game Nerd
James Duncan Rolfe is an American actor, comedian, filmmaker, film and video game critic, and internet personality, best known for starring in the web television series The Angry Video Game Nerd, a joint production of Rolfe's Cinemassacre Productions, GameTrailers, and ScrewAttack.
He Well Beat Johnny Test Up Like He Beat Up Bugs Bunny - CuteGirlJigglypuff
19 Dipper Pines (Gravity Falls)
Dipper Pines is the main character in Gravity Falls which the show aired from 2012 to 2016.
He is the brother of Mabel Pines
20 Dee Dee (Dexter's Laboratory)
Dee Dee is a fictional character and the sister of Dexter from the Cartoon Network animated series, Dexter's Laboratory.
21 Bart Simpson
Bart is the oldest child in The Simpsons. He was created by Matt Greoning. His hobbies are pranking people including Lisa Simpson and Homer Simpson.
22 Rarity (My Little Pony: Friendship is Magic)
Rarity is a female Unicorn pony from the 2010 Animated Television Series My Little Pony:Friendship is Magic. She is the element of Generosity and her main passion is fashion.
She will throw gems at him.
23 His Sisters
I think that Johny can be really annoying and dumb at times sometimes he can be hated by his own sisters
24 Finn (Adventure Time)
25 Mario (Super Mario Bros)
Mario is the main character in the Mario Bros. Franchise, who was created by the creative director and video game designer at Nintendo of Japan, Shigeru Miyamoto. Mario has appeared in almost every Mario Game, including spinoff series, as a playable character, with few exceptions including New Super ...read more.
26 Candace Flynn (Phineas and Ferb)
Candace Gertrude Flynn is a main character of the Disney Channel animated television series Phineas and Ferb, voiced by Ashley Tisdale and created and designed by Dan Povenmire.
27 Professor Professor (The Secret Show)
28 Ms. Bitters (Invader Zim)
29 Ben Higgenbottom (The Mighty B!)
30 Ben Tennyson (Ben 10 Planet)
31 Patrick Star (SpongeBob SquarePants)
Patrick Star is a fictional character in the American animated television series SpongeBob SquarePants. He is voiced by actor Bill Fagerbakke, who also voices numerous other characters on the show . Created and designed by marine biologist and cartoonist Stephen Hillenburg, the series creator, Patrick ...read more.
32 Ren Hoek (Ren and Stimpy)
33 Brian Griffin (Family Guy))
Brian H. Griffin, popularly known without his middle initial as Brian Griffin, is a fictional character from the animated television series Family Guy.
34 Dib (Invader Zim)
35 Smart Alec (Random! Cartoons)
36 Ned Bigby (Ned's Declassified School Survival Guide)
37 Vendetta (Making Fiends)
38 Elsa (Frozen)
Queen Elsa of Arendelle is a fictional character who appears in Walt Disney Animation Studios' 53rd animated film Frozen.
She'll freeze Johnny Test.
39 Velma (Scooby-Doo)
40 Billy & Mandy (The Grim Adventures of Billy and Mandy)
41 Peter Griffin (Family Guy)
Peter Griffin is the main protagonist and titular character of the American animated sitcom Family Guy.
42 Steven Universe
I'm Sorry, You're on The Wrong List
44 Darth Vader
Darth Vader was the original dark lord for Star Wars. Darth Vader ruled with both fear and aggression. Originally Anakin Skywalker a young Jedi who was then seduced by the dark side of the force by Chancellor Palpatine/Darth Sidious. Vader had his limbs cut off by his jedi master Obi-Wan Kenobi leaving ...read more.
45 Wallace & Gromit
Garfield is a comic strip cat, created by Jim Davis in 1978. Garfield is well-known in many countries and has appeared in over 2.500 newspapers. He has also had 2 live-action movies, 3 CGI-movies and two animated TV shows, Garfield and Friends (1988-1994) and The Garfield Show (2008-2014). ...read more.
48 Sulley (Monsters Inc./Monsters University)
49 Hugh Test (Johnny Test)
He can sometimes be hated by his own dad
50 Chris Griffin (Family Guy)
Christopher Cross "Chris" Griffin is a fictional character from the American animated television series Family Guy.