1 Rick Sanchez
Rick Sanchez is a fictional character from the American animated television series Rick and Morty, aired on Adult Swim.
He made a dimension gun, turned himself into a pickle, made a microverse, made a universe, made a thing to erase peoples memories, killed someone by doing nothing, etc. Safe to say he is really smart.
Rick is the smartest in the universe witch means that he's smarter than everybody
He is very smart in fact his more smart then he is a jerk
Simply the wittiest and smartest character!
2 Jimmy Neutron
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.
Greatest Lab in all the Nick universe Jimmy Timmy Power hour is proof of this!
"Looks like they couldn't handle the Neutron style."
He has invented spaceships in one fudging day
Jimmy Neutron seems smart.
3 Mr. Peabody
Mr.Peabody is an accurate match
VERY VERY VERY SMART. HE BUILT A TIME MACHINE.
4 Lisa Loud
At 4 years old, Lisa is the second-youngest child of the Loud family and the second-youngest of Lincoln's five younger sisters. She is often seen working on complex experiments, equations, and formulas. Her most annoying habit is her weird studies on others, especially her siblings.
At 4 years old who else has all of these amazing abilities and inventions.
This is pretty obvious
Shes probably smart enough to get in the top 3 but shes 13th?
5 Sandy Cheeks
Sandra "Sandy" Cheeks is a fictional character in the Nickelodeon animated television series SpongeBob SquarePants.
She made a machine that can make duplicates of your self
6 Stewie Griffin
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.
Stewie is easily #1 come on he built a time machine in other genius devices in let's not forget he's a evil genius baby?
A baby built a damn time machine. #1 on this list please
Most intelligent kid ever
Built a time machine
7 Sheldon J. Plankton
Sheldon James Plankton, or simply Plankton, is a character in the Nickelodeon animated television series SpongeBob SquarePants.
This guy can't even defeat a manger of a fast food restaurant.
8 I.M. Weasel
Dexter is a fictional character and the titular protagonist of the Cartoon Network animated series, Dexter's Laboratory.
What is he doing here? He should be a 6 at least.
Has his own labratory
10 Alan The Brain Powers (Arthur)
Probably as smart as Lisa Simpson
11 Professor Frink
12 Star Swirl the Bearded
13 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.
Smartest Character of My Little Pony:Friendship Is Magic
Gross. Stop. Leave. Never return.
14 Lisa Simpson
Lisa Marie Simpson is a fictional character in the animated television series The Simpsons. She is the middle child and most intelligent of the Simpson family.
15 Velma Dinkley
Velma Dinkley is a fictional character in the Scooby-Doo franchise. She is usually seen wearing a baggy orange turtleneck, short red pleated skirt, knee socks, Mary Janes, and most prominently, a pair of square glasses, which she frequently loses.
Velma's a great gal
16 Hubert J. Farnsworth
17 The Brain (Pinky and the Brain)
18 Brian Griffin
Brian H. Griffin, popularly known without his middle initial as Brian Griffin, is a fictional character from the animated television series Family Guy.
No not at all he's an ass whose intelligence is very basic to possess
19 Gary the Snail
Gerald "Gary" Wilson Jr. is a fictional character who is a pet snail owned by SpongeBob SquarePants in the American animated television series SpongeBob SquarePants.
20 Jerry Mouse
Jerry Mouse is a fictional character and one of the title characters in Metro-Goldwyn-Mayer's series of Tom and Jerry theatrical cartoon short films. He is a mouse that gets chased by Tom, but tries to trick him so he won't catch him .
Jerry is so smart and cute! Also, I hope he gets his own show without that stupid mean cat being involved. Jerry needs to be at number 2, behind Yakko Warner of Animaniacs.
Because my public speaking using this character
Jerry mouse always tries too help people
He's a very smart mouse.
22 Marvin the Martian
23 Maggie Simpson
Margaret "Maggie" Simpson is a fictional character in the animated television series The Simpsons. She first appeared on television in the Tracey Ullman Show short "Good Night" on April 19, 1987. Maggie was created and designed by cartoonist Matt Groening while he was waiting in the lobby of James L. ...read more.
24 Bugs Bunny
Bugs Bunny is an animated cartoon character, created by the staff of Leon Schlesinger Productions (later Warner Bros.) He is one of the most famous cartoon characters, and he is in the show Looney Tunes. His famous quote is "What's up doc?". He is a gray colored bunny with big teeth and big feet. His ...read more.
He knows how to play with peoples minds, and that is an art few can master
He is probably the best manipulator in all of cartoon history.
How else is Bugs Bunny smart
He always beats elmer fud
25 Squidward Tentacles
Squidward Tentacles is a fictional character voiced by actor Rodger Bumpass in the American animated television series SpongeBob SquarePants.