- Nario off of Supah Nario Bros.
- Twice Blessed: The paladin, Cade Masters. Though sometimes it seems less like idiocy, and more like obliviousness.
- Walky from It's Walky! starts out this way, though he's later revealed as both a Genius Ditz and a Super Soldier. He also intentionally played up his ditz nature to avoid real responsibility (something he mostly abandoned near the end of It's Walky!).
- 8-Bit Theater's Fighter McWarrior. Though this should probably be amended to "Every character whose name ISN'T "White Mage", although even she has her moments.
- Elan from The Order of the Stick, even after he Took a Level in Badass. (or is he?)
- He even managed to fight his evil twin Nale with stupidity.
Elan: Nale! You're alive!Nale: Of course I'm alive, you moron. What I can't figure out is how you didn't know I was alive the whole time. You're the bard, surely you should have known that when a bad guy dies off-screen, he's not really dead unless you see the body. And half the time, not even then.Elan: Yeah, but the hero always THINKS the bad guy is dead until he shows up again.Nale: But... If you know that, how can you be surprised... Why didn't you realize that you thinking I was dead was... I mean... Gah! I'm giving myself a migraine just trying to understand the level of willful ignorance that requires!Elan: First blood: Elan!
- He even managed to fight his evil twin Nale with stupidity.
- Girl Genius has Othar Tryggvassen, Gentleman Adventurer! He has some tendencies towards this trope at times, especially in his own adventures. At one point, he's trying to find and stop the Weasel Queen. He finds a woman with weasel ears and a throne. Conclusion? She must be a Damsel in Distress! Othar is Too Dumb to Live in the Girl Genius world. It's a good thing he's also the Determinator. In the GG comics, Othar isn't The Hero. He's barely A Hero. He's comic relief, and he's dumb to serve the Rule of Funny. In the twitter adventures, Othar is the hero, and he's written as fairly confident and clever, only getting into scrapes because he's a sparky Gentleman Adventurer. (though the twitter is also written by Othar, so take it with a grain of salt). Finally, he's absurdly competent at few things, though. Such as surviving being thrown out of an airship (this happens to him with Running Gag frequency).
- Torg from Sluggy Freelance. He Took a Level in Badass as well, and does smart stuff sometimes... but reverts right back. Bun-bun can't decide whether it's an act. The real answer is probably one he has practically given himself: he doesn't like to think and prefers to avoid it. When he actually makes the effort, though, the results are either as good as for anyone else or downright brilliant in a weird kind of way. Though Gwynn thinks "he's smart and knows exactly what he's doing".
- Karn from Adventurers! and the nameless hero from RPG World are practically clones of each other.
- Lance from Gold Coin Comics.
- Link from Zelda Comic is portayed as this.
- Jim in Darths & Droids whenever he's in RPG mode, since he likes to turn his brain off. He's actually quite smart in the real world, and has at least a PH.D. in geophysics.
- In Exterminatus Now Rogue's temporary Replacement Scrappy Yuri "Wildfire" Keila.
Lothar:(after Wildfire's stupidity has ruined their mission New rule: No member of the team is allowed more beam swords than brain cells.
- She was so stupid, The team had her chloroformed, passed of as injured (complete with full body cast), and sent back to Taika in exchange for Rogue, who they, after what Wildfire's done, are delighted to see.
- Abraham of El Goonish Shive is a mild Deconstruction: He's so stupid that he's a Knight Templar. First he accidentally created an Artifact of Doom that removes curses by physically manifesting them as living beings, which he then tried to destroy "by every means possible" (but if nothing else, we know he didn't even try to throw it in a volcano), and then swore an oath to be petrified and only return to life to destroy anything created by the Artifact of Doom. This sounds reasonable until you realize that the diamond could be used to remove relatively benign curses, thus creating people.
- Dhur of MeatShield is fairly dim, being a half orc barbarian and all.
- Subverted in every notable instance in Homestuck. That Blue Blood Big Guy is a genius roboticist. The hipster obsessed with irony later keeps an intricate timeline of Stable Time Loops straight in his head. The main character, John, initially seems like a goofy kid who's not really all that bright, but in a matter of hours he's managed to figure out every bit of practical knowledge in the game. His sister is a Teen Genius and his father was an Omnidisciplinary Scientist.
- John does have hidden depths, but he still plays this pretty straight most of the time. He's pretty gullible (having been lead to his death at least once), wastes time reenacting inane scenes from terrible movies, generally has far less clue about what's going on than the other characters... but is the first human to ascend to God Tier, and is capable of using The Windy Thing to produce tornadoes so strong they can drill through the planet. He seems to be heading toward the All-Loving Hero. He considers himself the other kids' friend rather than their leader, which (as Rose points out) is precisely why the other kids consider him their leader.
- Minmax from Goblins. The fact his player traded such things as the ability to read for fighting ability is a major Running Gag.
- Even though they're known for burning down friends' apartment buildings just by properly using kitchen appliances, Grymm and Creepknight from Voodoo Walrus are still able to use unconventional methods to defeat a compliment of union ninjas.
- Mega Man from Bob and George. When he isn't an evil genius, that is.
- In Greg, Gregorious maintains his idiocy throughout the Medusa story arc by repeatedly falling victim to Medusa's nude charms.
- Both of the protagonists in Skullkickers, although Shorty more so than Baldy. They're actually extremely competent, they just aren't very bright.
Readers: Why does the human [fill in the blank]?Writers: Because he's not very smart.Readers: Why does the dwarf [fill in the blank]?Writers: Because he's stupid.