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Anime & Manga
- Dorodoron's voice from Futari Wa Pretty Cure Splash Star sounds very similar to this type, sounding rather like Grounder from Adventures of Sonic the Hedgehog would if he was speaking Japanese.
- Dragon Ball Z:
- The French dub is notable for giving an extraordinarily nasal voice to Vegeta of all people. It's been theorized that not having read the entire story, the voice actors had originally expected him to be a generic cartoon villain, and thus gave him a generic cartoon villain voice; cue Heel–Face Turn... It was never a "moron" voice though, more of a "evil schemer with permanent Psychotic Smirk" voice.
- Recoome of the Ginyu Force; the "dumb-as-nails Psychopathic Manchild" vs. "hammy sadist who's just toying with you" ratio depends on who's voicing him.
- Bear in the English dub of Yo Kai Watch. Would make scene, considering what what type of character he is. Also, his English voice actor is unknown at this time though.
- Moose from Archie Comics is written this way. He used to say "Duh—" before every line.
- Sailor Venus of Sailor Moon Abridged.
- Tristan of Yu-Gi-Oh! The Abridged Series. But it does give him super strength!
- Nappa from Dragon Ball Abridged, as well as the Kanassan who gives Bardock the ability to see the future.
- Suzaku Kururugi of Code MENT.
Films — Animation
- Gus the Mouse from Disney's Cinderella.
- Whale hunter's assistant from The Legend of the Titanic and its sequel.
- Br'er Bear in Song of the South.
- Cubby from Peter Pan.
- The titlure Igor
- Sykes, Ernie, Bernie and Miss Sanchez from Shark Tale.
- The Big City Agent from The Trumpet of the Swan.
- Jon Heder provides one for the main character in ''Legend of Kung-Fu Rabbit''.
- Willie the Giant in the "Mickey and the Beanstalk" segment of Fun and Fancy Free.
- Maleficent's mooks in Sleeping Beauty, as they Drop The Bombshell that they wasted more than fifteen years searching for a baby.
- Ammo and Governor Brandford in Free Birds.
Films — Live-Action
- This was lampshaded in Jackie Chan's The Tuxedo. Jennifer Love Hewitt does a perfect impression of the Big Bad's bimbo girlfriend's voice.
- In many film adaptations of Of Mice and Men, Lenny is often portrayed like this.
- Judy Holliday used this sort of voice when playing Billie Dawn in Born Yesterday.
- Likewise, Broderick Crawford in the same movie uses the rough-and-tumble "big dumb guy" version. Of course, Crawford really spoke like that...
- Falkor from The Neverending Story III.
- Lina Lamont in Singin' in the Rain.
- Nick in 30 Minutes or Less.
- Sam in I Am Sam.
- Mira Sorvino played an rare low-pitched female version of this in Romy And Micheles High School Renuion, adopting a deep but very feminine drawl that made her character seem very slow witted.
- Napoleon's low-pitched voice and his brother Kip's higher-pitched one in Napoleon Dynamite.
- Referenced in the novel version of Flowers for Algernon; Charlie notes that he had a stupid-sounding voice before his increase in intelligence, and he lapses back into it whenever he gets drunk.
- Discworld trolls tend to have this type of voice. Detritus, the troll that tends to show up the most, says "dis," "dat" and "der" instead of "this", "that", and "the." (He also sometimes replaces "th" with "f", for example "fink" instead of "think".)
- M-O-O-N, that spells Tom Cullen from The Stand.
- Pets, Aiku and inspector Kukeke from Wremja.
- Michael Westen on Burn Notice occasionally affects something resembling this accent for his "Bubba"-ish characters.
- The Pakleds in Star Trek: The Next Generation.
- The Ogrons in Doctor Who should be this, with one exception. In Day of the Daleks, the Controller confronts two Ogrons. The first one says, "We found...and destroyed...the enemy." The controller asks if there were any complications, and the second one replies, "No complications," in a perfectly normal voice.
- Subverted in The Big Bang Theory: Bernadette speaks with a high, nasal, squeaky Dumb Blonde voice, but has a doctorate in Microbiology.
- Rom from Star Trek: Deep Space Nine has one.
- The Muppet Show:
- Lew Zealand has one, not because he's dumb, but rather a Cloudcuckoolander. He's also dumb, but it's not his main problem.
- Beauregard has one as well.
- Booji Boy, mascot of Devo, a character portrayed by their singer Mark Mothersbaugh in a baby mask. Booji Boy exemplifies the band's philosophy of Devolution, and talks with a squeaky voice, known for such phrases as "We're all Devo".
- Wesley Willis lapsed into this every time he sang a chorus.
- Frank Zappa used many of these across his career, like the teenage doo wop singer voice he uses on used on several tracks on Freak Out.
- Leaf Coneybear from The 25th Annual Putnam County Spelling Bee generally has one.
- Kitty from The Drowsy Chaperone.
- Lilly from Annie.
- In Bells Are Ringing, Ella adopts a "dumb chorus girl" voice during "Just In Time" when an audience gathers to watches her dance with Jeff, but goes back to singing in a normal voice before the song ends. (This was another role originated by Judy Holliday.)
- In "Buddy's Blues" from Follies, the "Margie" and "Sally" caricatures talk this way. Mostly they just echo Buddy's words.
- Rollo from The Elder Scrolls: Redguard.
- Ogres and Peasants from Warcraft II and III.
- Frost Man from Mega Man 8. "Dat hurt!"
- Clark from Rayman 2.
- Ogryns in Warhammer 40,000: Dawn of War. note Some Ork boyz, too.
- Xu Zhu from Dynasty Warriors.
- Derby in Professor Layton and the Diabolical Box.
- Olaf from the PC and Saturn versions of The Lost Vikings 2.
- Big the Cat from Sonic the Hedgehog.
- Also Zomom from Sonic Lost World.
- Mr Fossey from The Curse of Monkey Island.
- Willard and Mog from Jak and Daxter.
- Boastful: While elcor from Mass Effect have this tone of voice down to a T with the low, "drooping" pitch and lazy inflection, they subvert this trope by being as intelligent as any other species and sometimes prone to Spock Speak to make up for the lack of emotion in their voices.
- Goliaths in Borderlands 2, the Giant Mook enemy type of the Bandits. Strangely, their speech is a lot less slurred when you make them angry.
- Sir Daniel from the MediEvil series and Playstation All Stars Battle Royale. However, this one is justified due to the fact that he has no lower jaw. And he's not really stupid, just very clumsy.
- In the English dub of Trouble Witches NEO!, Pril Patowle is given such a voice, making her sound incredibly slow and dim. Here, listen for yourself.
- Homestar Runner:
- Strong Mad from speaks in an extremely exaggerated version of this trope, Played for Laughs. Most of his dialogue is nigh-unintelligible growls, but if you listen closely he is saying actual words...probably. Homestar Runner himself is a (somewhat) more subdued version of this trope.
- Homsar. Dear God, HOMSAR.
- The two titular leads of Baman Piderman.
- Jimbob from GEOWeasel speaks in a low-pitched voice.
- In The Order of the Stick, half-orc Thog the Dumb Muscle Bumbling Sidekick is implied to sound like a moron just as much as he is one. His general speech pattern is Hulk Speak, the text of his speech bubbles is emboldened and transcribed in all lowercase letters and to top it all off he's a Third-Person Person. It was later revealed that all orcs speak like this, though they can apparently grow out of it through grammar lessons.
- The Nostalgia Chick did it in her review of Spice World.
Mel B: Girl power, feminism, you know what I mean?
Chick: [in the stupidest voice she can manage] No. Do you?
- The voice of the Wii in this Dreamcast vs Wii video.
- Don't Hug Me I'm Scared:
- Yellow Guy uses this voice, only emphasized by his short stature, noticeable slowness and status as a Butt-Monkey.
- The Spinach Can from the fifth installment has one, which emphasizes the low quality of his/her song and helps invalidate his/her flimsy health advise.
- Unlike the five preceding videos, the sixth video's Teacher is almost immediately revealed to be malicious and ignorant, and as such, the Lamp's voice is quite slurred in order to immediately convey his incompetence.
- Hyuck! Goofy (1932), first appearing in the early days of the sound era, may have been the very first cartoon character with a voice like this. Bill Farmer is capable of pulling off the voice while still giving Goofy an impressive emotional range in modern productions.
- Homer Simpson is the leader of a small crowd of such characters from The Simpsons.
- Barney Gumble has an exaggerated one because he's almost always drunk.
- Parodied/subverted with Oxford "Ox" Haas, one of the soldiers Grampa Simpson served with in World War II in "The Curse of the Flying Hellfish." He spoke with this voice, and looked exactly like the kind of person who would.
Burns: How many of you are familiar with the concept of a "Tontine"?
[beat; all stare at Burns silently, until Ox raises his hand]
Burns: All right, Ox. Why don't you take us through it?
Ox: Duh, essentially, we all enter into a contract whereby the last surviving participant becomes the sole possessor of...all them purty pictures.
- In one Imagine Spot where Lisa imagines her future after losing her intelligence, she's inexplicably gained a southern accent.
- Used in the Futurama episode "Fear of a Bot Planet" where the crew meets the council of robot elders. They promote human hunts to distract from their bigger problems.
Elder 1: Like our crippling lugnut shortage.
Elder 2: And an incompetent group of robot elders.
Elder 3: Duh, that's for sure.
Elder 1: Quiet, Jimmy!
- Igner (of Mom's three sons) can also qualify as this. The irony comes in when we learn his father is Professor Farnsworth!
- Patrick Star from SpongeBob SquarePants.
- Peter Browngardt, aka Uncle Grandpa, makes a guest appearance in the Season 11 episode "Patrick's Coupon" as the Ice Cream King and used Uncle G's voice. The similarity between the voices is uncanny.
- Uncle Grandpa talks in this voice all the time.
- Jack from The Nutshack
- Pinky from Pinky and the Brain.
- Mungo from Heathcliff and the Catillac Cats.
- Hugo the Abominable Snowman from Looney Tunes.
- Also Beaky Buzzard, and Junior from the Three Bears shorts.
- Mugsy of Rocky and Mugsy.
- A particularly notable example is Pete the Puma from "Rabbit's Kin".
- The identically-sounding Runt and Ralph from Animaniacs.
- Various minor Ren & Stimpy Show characters, such as Lump and Loaf. Not to mention Stimpy himself.
- Chris Griffin from Family Guy. This wasn't actually the intention; Seth Green went into the audition and decided to do his impression of Ted Levine as Buffalo Bill in Silence of the Lambs as a joke, but ended up getting the part. Inevitably, this is referenced in a cut-away gag where Chris does an impression of Buffalo Bill dancing naked (and tucked back) in front of a mirror.
- And in the original version of the Pilot, his voice is more of a typical low-pitched simpleton voice.
- For that matter, Barry in American Dad!, who has the same voice, only slightly more affected. Well, it isn't his real voice but the voice he has while heavily drugged to suppress his true, evil personality. His real voice is a cultured accent.
- Cleveland Jr. from The Cleveland Show.
- Brittany, from Daria.
- Grounder in Adventures of Sonic the Hedgehog. His voice changes to Received Pronunciation when he gets a genius chip.
- Bebop and Rocksteady in the '80s Teenage Mutant Ninja Turtles cartoon.
- Luanne and Bill from King of the Hill.
- Linsday from Total Drama.
- Ed (single "d") and May from Ed, Edd n Eddy.
- Ringo Starr from The Beatles. The actual Ringo wasn't happy about it.
- Junior from Tex Avery's George and Junior shorts
- Heffer from Rocko's Modern Life.
- Stinky from Hey Arnold!, but he's not a complete idiot, just comically awkward.
- Willy White from Doug.
- Waffle from Catscratch.
- Brain from Top Cat.
- Megawatt from ˇMucha Lucha!.
- Scooby Dum from Scooby-Doo.
- Rocky from Avenger Penguins.
- Meathead from Tex Avery's Screwy Squirrel cartoons.
- Snails and Derpy Hooves from My Little Pony: Friendship Is Magic
- Tred Possum in Get Muggsy!.
- Cheif from Tak and the Power of Juju.
- Gerold from The Goode Family.
- Ranger Stu from Squirrel Boy.
- Wally Gator as he appeared in Harvey Birdman, Attorney at Law.
- Principal Pixiefrog and Neardy Crockodile from My Gym Partner's a Monkey.
- The titled protagonist of Yakkity Yak.
- Penny from The Mighty B!.
- Baby Shellby from House of Mouse.
- Professor Pamplemoose from Sidekick.
- Lube from CatDog
- Nester, Momma, Paddy, Buck, Dan Duck and Paulie from Scaredy Squirrel.
- Mr. Flea from Pearlie.
- Airhead, and no doubt several other characters, in Filmation's Ghostbusters.
- Officer Barbrady from South Park combines this with No Indoor Voice.
- Shelley also talks this way (though it may just be a Speech Impediment caused by cumbersome dental work).
- Reggie Bullnerd from ChalkZone.
- Peppermint Larry from The Marvelous Misadventures of Flapjack.
- Vlad from Shuriken School.
- Ticket Guy from the Regular Show episode "Caffinated Concert Tickets".
- Mole from Mr. Bogus, as well as Bogus himself.
- Hubert "Dad" Test from Johnny Test.
- Tooley from Motorcity.
- On the few occasions Tom spoke, it was this voice more often than not.
- Hi-Riser from Wheelie and the Chopper Bunch.
- Lumpy from Happy Tree Friends.
- Richard from The Amazing World of Gumball. Sussie the Chinikin is an even more extremely version.
- Scorpia from She-Ra: Princess of Power has one, though the character didn't seem particularly stupid.note
- Lilly from Timothy Goes to School a rare female example. However she loses this voice when she get's very upset,ashamed, or annoyed.
- From the same show the duo Frank and Frank.
- From Camp Lazlo we have the Dung Beetles, Chip and Skip. There's also Clam who subverts the trope as he only behaves like one.
- Shirley from Shaun the Sheep. Seeing that she's the Fat Idiot of the idiot, her voice is low and raspy.
- Harley Quinn in Batman: The Animated Series spoke in the female variation, complete with a Jersey-like accent. In the episode "Mad Love", it's revealed that before she was brainwashed by the Joker, her she spoke in a lower pitched voice and the accent was more subtle.
- Also subverted; not only can she switch to a deeper, un-accented voice at will (as shown in the episode, "The Man Who Killed Batman"), but she's actually highly intelligent, not only having been a psychiatrist before her brainwashing, but able to pull off a perfectly good and understated gem heist on her own. The implication is that she acts like this because the Joker prefers for her to act stupid.
- As in the comics, Moose in The Archie Show and Archie's Funhouse is voiced this way. Same goes for Big Ethel.
- Wild Card and the Watchdog janitor in the Wander over Yonder episode "The Big Job".
- The Sea Monster from Harvey Beaks.
- Baby Bugs, Baby Taz and Baby Sylvester in Baby Looney Tunes.
- Beezy from Jimmy Two-Shoes.
- Lenny from Freaktown is basically Beezy as a giant mantis (ironically Lenny's voice actor was Jimmy himself).
- Rainbow Brite has Lurky, Murky D Ismal's hairy assistant.
Duh, I am Mo-Ron.note
- Gil from Cloudy with a Chance of Meatballs.
- Cosmo from The Fairly OddParents! has an extremely high pitched voice. In fact, thanks to his Flanderisation from "goofy but smart" to "straight up idiot", his voice got progressively higher. In the original Oh Yeah! Cartoons shorts, he was pretty intelligent ( probably even smarter than WANDA ) and had a deep and smooth voice. In first few seasons, when he was goofier and less intelligent, but not to terrible levels, he had higher voice, but it still had a natural tone to it. In later seasons, when he became Too Dumb to Live, he has voice so high you would swear that either his original voice actor got replaced or that his voice is digitally edited to sound like that.
- Actor Bill Fagerbakke (who is quite intelligent, urbane, and friendly in person) has made a career out of this trope, and he does it by only very slightly exaggerating the way he naturally speaks. In addition to voicing Patrick Star in Spongebob Squarepants, Broadway in Gargoyles and Bulkhead in Transformers Animated, Fagerbakke played Tom Cullen in the miniseries adaptation of Stephen King's The Stand and Dauber on Coach; all of them had the "big dumb doofus" form of this trope.
- Karl Pilkington of The Ricky Gervais Show and An Idiot Abroad sounds notably less intelligent than Ricky and Steve...naturally, he is.
- He is intelligent enough sounding for a working class guy from Manchester though.
- Studies done on rural American Accents found that a disproportionate amount of preschoolers who spoke with vernacular rural accents (Vermont, Appalachia, etc.) were placed in special education classes for it.
- Stephen Colbert was raised in South Carolina, but by adulthood, had shed his Southern accent because when he was growing up, he'd seen that stupid characters were frequently shown speaking with similar accents, which led him to imitate the accents of American news anchors.