Random Mind-Blowing Fan Theories About '90s Cartoons (13 items)

(#13) The Babies In 'Rugrats' Are Figments Of Angelica's Imagination

We all loved Tommy, Chucky, Phil, and Lil in Rugrats, but what if none of the babies actually existed? That's what one popular fan theory claims: that the babies are merely a figment of Angelica's imagination.
According to this theory, Chuckie died with his mother as an infant, which explains why his father Chaz is nervous all the time. Tommy was stillborn, causing Stew to go mad and spend all his time in the basement building toys for the son he never had. Finally, the Deville family ended up getting an abortion, and since Angelica didn't know the sex of the baby, her mind created the twins.
For what it's worth, the creators of Rugrats have denied this theory.
(#2) In 'Pinky and the Brain,' Pinky Is Actually The Genius

In the theme song for Pinky and the Brain, the lyrics specifically tell us that "one is a genius, the other's insane." However, have you ever wondered why they don't specifically tell us which mouse is which? One fan theory argues that Pinky is, in fact, the genius of the bunch, and Brain is the insane one.
If you think about it, it totally makes sense - the insane megalomaniac brain is trying to take over the world every day, and by playing dumb, Pinky is able to thwart him time and time again, saving the world and leading Brain to believe it was only an accident.
(#12) Chief Wiggum And His Wife Are Brother And Sister In 'The Simpsons'

This theory is a bit farfetched, but it would explain why Ralph Wiggum is such a blithering idiot. Clancy Wiggum and his wife Sarah are very similar looking, almost like... twins? If they are indeed brother and sister, then that would explain Ralph's extremely extremely low IQ.
(#9) Professor Utonium From 'The Powerpuff Girls' And Jack From 'Samurai Jack' Are The Same Person

Have you ever noticed how Professor Utonium from The Powerpuff Girls and Jack from Samurai Jack look exactly the same? One fan theory states that after his final showdown with Aku, Jack and Aku are both launched into a time portal that the evil Aku created, and as a result of using his own dark power, Aku is transformed into a liquid version of himself.
Now in a new world and time period, Jack dedicates his life to studying the liquified Aku, or "Chemical X," and eventually makes lemonade out of lemons by spawning the Powerpuff Girls from the evil chemical.
(#3) The Strange Events In 'Courage the Cowardly Dog' Are All Normal

Courage the Cowardly Dog first aired on Cartoon Network in 1999. The concept of the show is simple: Courage the dog lives on a farm with his owners Muriel and Eustace, and every episode a scary creature, person, or monster visits the farm and terrorizes the family. Courage eventually confronts his fears and foils the monster's plans, thus saving the family. One fan theory, however, presents an opposing viewpoint: what if the "monsters" that visit the family each week are merely regular people being seen through the eyes of a dog?
In other words, the show is not about literal monsters who are haunting the family, but the overactive imagination of a dog and how it perceives the world around it.
(#6) Helga Is The Main Character In 'Hey Arnold!'

Hey Arnold! was one of Nickelodeon's most popular cartoons in the '90s, but who is truly the main character of this series? The obvious answer is Arnold, but if you dig a little deeper you can make a case that Helga Pataki is indeed the show's protagonist. Helga is the only character in the show with extended monologues, and is basically the only character that is ever going through an internal struggle.
The show's title, Hey Arnold!, is actually a quote from Helga, as seen in the show's intro.