Dumbest Simpsons Characters

The Top Ten
1 Ralph Wiggum Ralph Wiggum is a side character in The Simpsons. He is the son of Chief Wiggum. Ralph is not very smart at all. He is voiced by Nancy Cartwright. Some episodes such as I Love Lisa and This Little Wiggy have him as a major character.

His father is dumber.
He was dumbed down for comedy.
I mean episodes like "I love Lisa"

Can't agree more, as soon as I saw the list, I thought it is just right, Ralph Numeber One

Dumbed down character. But just dumbed down for laughs.

2 Homer Simpson Homer Jay Simpson is the main protagonist of the American animated television series The Simpsons as the patriarch of the eponymous family.

Lisa the Simpson or Crayon in the Brain.
I think Crayon in the Brain is more believable I mean his brother doesn't seem to have the Simpsons gene. Simpsons gene in my theory is non canon but Lisa was having a bad day like Marge said.

Homer Simpson is the best character in history of television!

3 Bart Simpson Bartholomew JoJo "Bart" Simpson is the oldest child, and the only son, in the 1987 show The Simpsons. He was created by Matt Groening. His hobbies are pranking people including Lisa Simpson and Homer Simpson.
4 Mr. Burns Charles Montgomery Plantagenet Schicklgruber "Monty" Burns, usually referred to as Charles Montgomery Burns or simply Mr. Burns, is a recurring character in the animated television series The Simpsons, voiced initially by Christopher Collins, and currently by Harry Shearer.
5 Chief Wiggum

This guy is just too stupid, it is not funny, Ralph maybe a little stupider but he is a lot younger and maybe disabled.

6 Moe Szyslak
7 Barney Gumble Barnard "Barney" Gumble is a fictional character on the American animated sitcom The Simpsons. The character is voiced by Dan Castellaneta and first appeared in the series premiere episode "Simpsons Roasting on an Open Fire".

Being drunk in nearly every episode except for the ones when he gave up drinking. Then started again.

8 Groundskeeper Willie Groundskeeper Willie is a character in The Simpsons. He is most famous for his Scottish accent. He first appears in the episode Principal Charming.
9 Abe Simpson Abraham "Abe" "Grampa" Simpson is the patriarch of the Simpson family in the iconic cartoon The Simpsons. He is the paternal grandfather of Bart, Lisa and Maggie Simpson and the father of Homer. The aim of his character is to make fun of stereotypes about old people, such as never ending story-telling or forgetting everything.

OMG every time I see Abe Simpson pop up on my screen I just burst out with laughter
I love him

He is not really senile. He's just stupid.

10 Nelson Muntz Nelson Mandela Muntz is a fictional character and the lead school bully from the animated TV series The Simpsons.
The Contenders
11 Jimbo Jones

He stayed in elementary school for so many years

12 Kearney Zzyzwicz

The bully who is bald in case his second name confused you

13 Cletus Spuckler

He has to be on the list, top 5.

14 Comic Book Guy Comic Book Guy is the common, popular name for Jeffrey "Jeff" Albertson, a recurring fictional character in the animated television series The Simpsons.
15 Hans Moleman Hans Moleman is a recurring character on the animated television series The Simpsons. He was created by series creator Matt Groening and is voiced by Dan Castellaneta, and first appeared in the episode "Principal Charming".
16 Milhouse Van Houten Milhouse Mussolini Van Houten is a fictional character in the animated television series The Simpsons, voiced by Pamela Hayden, and created by Matt Groening who named the character after President Richard Nixon's middle name.

Guess who likes you?

17 Otto Mann Otto Mann is a heavy metal obsessed bus driver from The Simpsons. He first appears in the episode Homer's Odyssey. He is shown to be friends with Bart Simpson, often calling him "Bart Dude". He is voiced by Harry Shearer.

Thos guy is not and. He makes me laugh once in a while. He loves to do drugs and is crazy. It is hard to explain but he is just a funny guy.

18 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.

Angelica Pickles would call her dumb.

19 Sideshow Bob Dr. Robert Underdunk Terwilliger, better known as Sideshow Bob, is a recurring character in the animated television series The Simpsons.
20 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.

Only to the fans, people who hate vegetarians.

21 Dolph Starbeam
22 Krusty the Clown Hershel Shmoikel Pinchas Yerucham Krustofsky better known by his stage name Krusty the Clown is a clown from The Simpsons. He first appears in the short Krusty the Clown, but in the show he first appears in The Telltale Head. He is Jewish. Despite the fact that he is children's entertainer, he's seen drinking and smoking a lot.
23 Marge Simpsons Marjorie Jacqueline "Marge" Simpson is a fictional character in the American animated sitcom The Simpsons and part of the eponymous family. She is the wife of Homer and the mother of three children in the family.

She does not know whats she's saying

24 Brandine Spuckler
25 Principal Skinner Principal W. Seymour Skinner is a fictional character in the American animated sitcom The Simpsons, who is voiced by Harry Shearer.
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