[[WMG:Junior from "Bellboy Donald" is Minnie Mouse and {{Pete}}'s son.]]
He has black fur like {{Pete}} and MinnieMouse. He has ears like {{Pete}}, but with Minnie's ear size. He has a flesh-colored facial "mask," body proportions, and eyes like Minnie (save for the eyelashes) but is [[InexplicablyTailless completely tailless]] like {{Pete}}. His feet are bigger than {{Pete}}'s feet but smaller than Minnie's huge feet. He has a muzzle like that of Minnie, but shorter, smaller, and with a lip shape like that of a cat.

[[WMG:The real reason why Mickey and Minnie aren't married...]]
...is because Mickey has the hots for all the Princesses.

How did that happen? After visiting Disney World, seeing the Princess floats in the Main Street Parade all pass in order, seeing Mickey's float and hearing this quote (he says it with a flirty tone, too - also, paraphrasing): "Didja see all those princesses?" Then adds quickly, "No one like my Minnie though!"

Why'd he date Minnie for so long? He didn't want to have his fame crash and burn over bestiality charges.
* Mickey wants to marry a princess because of the perks of being royalty. True, he's made millions upon millions in merchandising alone; perhaps he became a [[WesternAnimation/SouthPark money-hungry]] jerk over the years who wants a crown to be adorned upon his head. Also, what stopped Jessica from marrying Roger Rabbit (even if only he made her laugh) despite being different species?
** The Princesses probably want in on the Mouse's money, too.
*** He [[KingdomHearts IS royalty]].

[[WMG:Mickey and Minnie ARE married.]]
They just keep up the youthful appearance of being boyfriend and girlfriend to appeal to each new generation.

What with all the various stories and places and time periods they've been in, it's possible to say that they married each other in each one, but we just never got to see it.

They were clearly married in ''Mickey's Christmas Carol'' and ''KingdomHearts''.

Then after the happy ending, someone pressed the ResetButton, and ''poof!'' they're back to square one. Donald Duck and Pete are prime suspects here.

And besides, why would [[MarsNeedsWomen a mouse find a human princess attractive anyway]]?

TruthInTelevision: The previous voice actor to Mickey was married to the current voice actor of Minnie. They're the only people in the world who know what Mickey and Minnie sound like having sex.

[[WMG: The classic characters (Mickey, Minnie, Donald, {{Goofy}}, Clarabelle, Horace, Max, e.t.c.) are of a species capable of [[Series/DoctorWho Regeneration]].]]
This explains why their appearances have changed over the decades.

[[WMG:Gastly from ''Franchise/{{Pokemon}}'' is biologically similar to the [[ClassicDisneyShorts classic]] {{Disney}} characters.]]
His appearance has changed very much over the years.

[[WMG: Mickey Mouse is a robot]]
Theres a similar theory for Sonic (Dr. Eggman is a [[WesternAnimation/BeastWars Predacon]]!), so why not?
[[WMG: There is two [[OswaldTheLuckyRabbit Oswalds]] a {{Universal}} one and a [[WaltDisney Disney]] one.]]
The Universal one convinced Mintz to get rid of WaltDisney along with his OswaldTheLuckyRabbit and slowly replace him with the universal one. Yen Sid, Walt's unknown alter ego, saved the Disney Oswald by creating [[EpicMickey The Wasteland]]

[[WMG: Bellboy Donald never really happened]]
Some time either around [[WesternAnimation/GoofTroop PJ's]] conception or right before his birth, Pete had a dream where he was a successful businessman with a son to make him proud, tormenting Donald Duck all day. He liked it so much he transcribed it, Donald Duck found it and rewrote the ending so that Pete Jr. would be punished. Pete still kept "Junior" in his mind as his ideal son, and was grandly disappointed when his child turned out to be a big softie and pushover.

[[WMG: PJ's (lack of) [[CanonImmigrant immigration]] explanations]]
Theory 1: He didn't immigrate with Max because he never came home during or after college. Really, is it that shocking that he would not want to return to [[ManipulativeBastard Pete]]? Plus, if he did he would probably have to choose between fighting on the wrong side and fighting directly against his father, which was hard enough for him to do in the context of ''WesternAnimation/GoofTroop'' where Pete was mostly a mundane threat.

Theory 2: He didn't immigrate with Max because he would be too imperiled by Pete's more villainous incarnations. ''WesternAnimation/GoofTroop'' portrayed one of the most sympathetic Pete incarnations ever and he was ''still'' a terrible {{Abusive Parent|s}}. True villain Pete may well have been willing to cross the line too far for Disney to consider appropriate. It's better than thinking he ''did'' immigrate with Max but that [[FridgeHorror true villain Pete has no qualms permanently imprisoning]] or [[OffingTheOffspring killing his son.]]

Theory 3: He didn't immigrate with Max because of {{the Woobie}} equivalent of ShippingBedDeath--we saw him [[EarnYourHappyEnding get a happy ending]]. Now he's much better off, ergo, not interesting anymore. The alternative, cancelling the happy ending, would be just as bad--causing rage among his fans for needlessly [[YankTheDogsChain yanking his chain]].

[[OverlyLongGag Theory 4: He didn't immigrate with Max because]] his personality would vary wildly depending on what Pete incarnation he was placed with to the point it would be hard to tell he was even the same character.

[[WMG: MinnieMouse's cat Figaro and Geppetto's cat Figaro are two different kittens]]
''Disney/{{Pinocchio}}'''s Figaro may not have been a CanonImmigrant into cartoons with MinnieMouse. Minnie's cat Figaro seems to be more of a tomboy and [[ViewerGenderConfusion may even]] [[SamusIsAGirl be female]]. Geppetto's cat Figaro, who also shows up in "Figaro and Cleo" seemed to be more like a little boy.