Cloudcuckoolander/Newspaper Comics

"Ms. Wormwood: Calvin, pay attention!! Now, what state do you live in? Calvin: Denial. Ms. Wormwood: (sighing) Well, I suppose I can't argue with that..."
 * In Curtis, Gunk exhibits various odd behaviors and abilities (explained by the fact that he's from some place called "Flyspeck Island"), as required by the plot.
 * Calvin from Calvin and Hobbes possesses such a runaway imagination -- he truly lives in Cloudcuckooland.

"Calvin (during the pledge of allegiance on the first day of school): I pledge allegiance to Queen Fragg and her mighty state of Hysteria"


 * The very fact that he sees Hobbes as real and everyone else doesn't (which often makes them suspect that Calvin is insane) also establishes him a place in this trope. The very fact that Hobbes thinks Calvin is crazy would fit him into this trope if that didn't. There's also the time where he comes into his class dressed as his superhero alter-ego, Stupendous Man. His classmates' facial expressions are the natural reaction anyone would have toward a Cloudcuckoolander.

"Sally: Wake up, Santa Claus came last night and he didn't leave you anything! * Pause* April fool!"
 * Jon Arbuckle from Garfield, since the late nineties, has gone from a slightly-dim, arrogant loser to a full-fledged Cloudcuckoolander in some strips, with lines of pure insanity like "I think my feet are jealous of my hands because they get to point at things." This without even getting into the surrealistic brilliance of Garfield Minus Garfield and other projects to improve the strip.
 * Garfield himself had his moments in the strips (before he got Flanderized into a full-time Deadpan Snarker). Remember when he became Banana Man? Or Amoeba Man?
 * The animated special Garfield's Feline Fantasies was all about his mind wandering off into fantastic stories.
 * Meanwhile, US Acres had Bo Sheep, who showed more tendencies of this in the comics than the Garfield and Friends animated series.
 * Krazy Kat. S/he thinks that getting bricks thrown at her/his head is a sign of affection.
 * Get Fuzzy: Both Bucky and Satchel occasionally display these tendencies, and many of Bucky's feline visitors really do.
 * Perhaps the ultimate funny-pages example of this type is the title character from Kevin McCormick's Arnold.
 * The entire Dick Tracy comic, since Max Allan Collins left. Bad guys getting squashed by steamrollers or having their eyes gouged out; businessmen (both good and bad) who dress like playing cards; characters being incinerated in giant fireballs; hillbillies defending themselves with bear traps; and every once in a while, something that seems to make sense. Rarely.
 * Sally from Peanuts has her moments:

"Eudora: This is my literature report. The book I chose to read was the TV guide."
 * Her friend Eudora even more so:

"Charlie Brown: Why can't I have a normal dog like everybody else?"
 * Lucy in the earlier strips. Notably the Trope Namer for Little-Known Facts--she thought, for instance, that birds flew to the moon.
 * Snoopy.


 * Peppermint Patty. To name but one example of her weirdness, she thought that Snoopy was an odd-looking little kid for years.
 * Hillary's classmate Nona from Sally Forth. Tends to take Hillary and Faye's idle Zany Schemeing and run with the idea into surrealism. All in the same tone of voice one would normally use when discussing lunch.
 * Even when Jackie from Adolescent Radioactive Black Belt Hamsters isn't brainwashed, he's still talking to himself and chattering away with crazy thoughts.
 * A few characters from the Ink Pen comic strip is this, the main example being Captain Victorious. Here, for instance. Or here.