Conspiracy Theories Caillou

Rosie has orange hair either because she's adopted and Caillou's parents did not want to get another child like Caillou, or one of the parents was more of a redhead when they were younger and their hair became darker over time. Or possibly Rosie's "gingerness" could have been passed by her grandparents

the narrator is could be an older version of Rosie, in which she is telling stories of her brother to her children or grandchildren

Caillou never had cancer and instead was born with a gene that prevents him from growing hair, or his growth of hair is very slow and it may take years until his hair starts growing.

Phineas and Ferb

The Real Dad

Dr. D and Phineas having the same head shape

Being the son of a scientist explains why Phineas is so intelligent It also answers why they appear to have infinite funds, possibly because of a trust fund or similar that Phineas has access to.

Phineas also appears to have little to no care towards any side effect caused from their creations. The giant rollercoaster that goes through town would have caused multiple crashes. For example, they carved Candice's face into Mount Rushmore, they made a time machine and destroyed the timeline, they held a medieval jousting tournament, and they built an escalator to THE MOON. And that's just the first half of season 1. This is possibly a hereditary defect from Doofen dad

it is possible that Perry's mission is solely to prevent the meeting of father and son. If they were to meet, the two geniuses could wreak havoc together, especially because Phineas has a very moldable young mind.

Candace couldn’t deal with Phineas’ death so she built an imaginary world where he was still alive & playing with her step-brother Ferb. Ferb has a disability & can’t talk or do much, but she imagines him and Phineas going on great adventures together.

The real reason why her mother can’t see the things that Phineas & Ferb build is that, well, they simply aren’t there.

And the more Candace tries to convince her mother, the more crazy she becomes

Spongbob

Pride: Sandy. Pride is a deep satisfaction derived from one's own achievements. Sandy is deeply proud of her home country, her athletic abilities, and her career as a scientist.

Greed: Mr. Krabs. Greed is the selfish desire for something, especially wealth or power. Krabs fits this sin perfectly, since he is obsessed with collecting money just so he can have riches for himself.

Lust: Pearl. Lust is intense exual desire. Pearl is depicted as boy-crazy and obsessed with male fish stars.

Envy: Plankton. Envy is an insatiable desire. Plankton is deeply envious of the success that his rival Mr. Krabs has achieved.

Gluttony: Mrs. Puff. Gluttony is the overindulgence of food. Mrs. Puff is shown to adore food, from chocolate cake to pasta,

Wrath: Squidward. Wrath is uncontrolled feelings of anger and hatred. Squidward hates his life, his job, his neighbors, and practically everything else about Bikini Bottom.

Sloth: Patrick. Sloth is excessive laziness. Patrick is ridiculously lazy; he is unemployed, lives under a rock, and sleeps a lot.

It has been suggested that Patrick or Gary could also fit gluttony, since Patrick also loves eating a lot of food. Gary's food bowl is commonly seen.

Winnie the Pooh

Winnie the Pooh: Impulsive eating disorder. His near obsession with honey indicates an eating disorder and his habit of repetitive counting shows evidence of OCD.

Piglet: Generalized anxiety disorder. Piglet is in a perpetual state of worry and can often be heard saying "Oh, dear." He has also developed an ear twitch, common in overly anxious individuals.

Eeyore: Depressive disorder. He always has a bleak outlook on life, and never feels any positive emotions like happiness and excitement.

Rabbit: OCD. Rabbit is very orderly and obsessive, mostly with regard to his garden.

Owl: Dyslexia and narcissistic personality disorder. While he is exceptionally bright, it is frequently shown that Owl has trouble reading. An example would be in Pooh’s Grand Adventure when he mistakes the word school for "skull." Owl is also theorized to have narcissism, an inflated sense of self-importance, due to his belief that he is wiser than the others.

Tigger: Attention deficit hyperactivity disorder. Tigger is always seen bouncing and can never stay in one place for a long period of time.

Kanga: Social anxiety disorder. She is very overprotective of her son, and she would never let her son make his own decisions because of her overprotectiveness.

Roo: Autism spectrum disorder. He lacks awareness of danger and has a strange attachment to sitting in his mother's pouch.

Christopher Robin: Schizophrenia. It is believed that all of the talking animal characters above are manifested depending on Christopher's mood.