[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/epimported_planet_sheen2_819x1024.jpg]]
[[caption-width-right:350:Earth's ambassador to Zeenu. Be ''very'' afraid.]]

A SpinOff of the ''[[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius Jimmy Neutron]]'' franchise, and the 29th Franchise/{{Nicktoon|s}} overall.

One day, Sheen sneaks into Jimmy's lab and finds his new rocket, made just for one. He then presses a button and is blasted off into the regions of outer space.

Before too long, he finds himself accidentally stranded on Planet Zeenu, four million and one lightyears away from home. There, he becomes an ambassador to the local purple-skinned Zeenuians, the Emperor of whom believes him to be a hyper-intelligent being sent from the heavens to guide them. He makes some new friends too, including Doppy--an alien who looks remarkably like Carl, Aseefa--a beautiful Glimmorian princess, whom Sheen becomes smitten with and Mr. Nesmith--a highly intelligent astronaut chimp.

Unfortunately, an evil villain named [[UnfortunateNames Dorkus Aurelius]], whose house Sheen accidentally wrecked during his crash-landing, is bent on destroying him. With the help of his new friends, Sheen must survive the plots of Dorkus and repair his rocket before anyone notices he's gone!

Premiered alongside ''WesternAnimation/TUFFPuppy '' on Creator/{{Nickelodeon}} October 2, 2010, the series was met with lackluster reception. About half of the first season was aired on Nickelodeon before they moved new episodes to be broadcast on Creator/{{Nicktoons}} only, similarly to ''WesternAnimation/BackAtTheBarnyard'' (which was produced by the same company). The last episode to be aired of the first season was released on February 15, 2013, with no likely followup, resulting in [[LeftHanging no resolution to Sheen's return to Earth]]. There was supposed to be a TV movie about Jimmy and the gang trying to rescue Sheen, but due to low ratings, production costs and several staff members moving on, it was cancelled.

No connection to Creator/CharlieSheen, or whatever planet he's from. [[note]]Though Sheen the character ''is'' named after Charlie.[[/note]]

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!!''Planet Sheen'' provides examples of:

* AbhorrentAdmirer: Princess Oom towards Sheen.
* ADayInTheLimelight: You only get 1 guess on how this is to Sheen.
* AerithAndBob: Oom, Dorkus, Nesmith, and Bobb.
* AliensSpeakingEnglish: Just like in the original series. Finally lampshaded.
--> '''Sheen''': Wow, Zeenuian sounds ''just'' like English! ''([[BreakingTheFourthWall Slowly turning to look at screen]])'' What an incredible coincidence!
* ApesInSpace: Mr. Nesmith is a chimpanzee from Earth who ended up on Zeenu when the rocket carrying him crashed.
* APlanetNamedZok: The show takes place on a planet named Zeenu.
* ArtEvolution: The animation software used is a much bigger improvement than the original, is the same software as used in ''WesternAnimation/BackAtTheBarnyard'', and it shows that in the first episode.
* BatmanCanBreatheInSpace: Just like the original series.
** Oddly enough, there's a shield on the rocket. This is probably so the driver wouldn't fly out, since there's no seatbelt. Also, Sheen is wearing a helmet when trying to blast home.
* BettyAndVeronica: The hideous Oom is Betty and Aseefa is the Veronica.
* BigBad: Dorkus Aurelius is the main antagonist, constantly scheming of ways to get rid of Sheen.
* BigGood: The Emperor, although only to some extent. While he may appear generous and kindhearted at first, especially towards Sheen, deep down he's just a big dumb baby with zero knowledge as to how to run a planet who seems to have little to no interest in the well-being of his subjects, frequently inventing ridiculous events and regulations just to tame his own boredom.
* BrainBleach: The episode ''The Oomlick Maneuver" has the wonderful line.
--> '''Sheen:''' I have seen things so horrible they will never ever go away, no matter how much I think of soap.
* BringMyBrownPants: In "A Well Oiled Fighting Ma-Sheen", it is implied that Doppy and Mr. Nesmith are so horrified by the Londar's cocoon hatching that they soiled themselves.
-->'''Doppy:''' And...I glooped.
-->'''Mr. Nesmith:''' I believe I have as well.
* TheCameo: In the first episode, after convincing himself that it's all a dream, Sheen imagines waking up on a farm - with [[WesternAnimation/BackAtTheBarnyard Otis and Pig]] walking by the window.
* CloudCuckooLand: Zeenu is full of eccentric people.
* CourtroomEpisode: "Trial By Jerry."
* DeadpanSnarker: Nesmith has his moments of making snide remarks about Sheen's moronic assumptions.
* DisappearedDad: Dorkus.
** Not only is he not seen, Dorkus does not even mention him.
*** This is highly speculated that his father is either dead, was a deadbeat father who left his mother, or had done something to make his son disregard his existence.
* DisguisedInDrag: In "Joust Friends," Sheen attempts to get out of a duel by disguising himself in a blonde wig and a tutu. Doppy is the only one who's fooled.
* TheDragon: Pinter is Dorkus' main lackey.
* EverythingsBetterWithMonkeys: Mr. Nesmith the chimpanzee, though he objects to being called a monkey.
* EvilChancellor: Dorkus, although partly subverted. Yes, he is mean and evil and never above cheating if it serves his interests but his only goal seems to be winning back the Emperor's favor, in order to do which he needs to get rid of Sheen. Even if he does consider his ruler to be incedibly vain (and seeing as he's [[StrawmanHasAPoint totally right about that]]), he never once tries to actually depose him.
* {{Expy}}: Sheen's friends from Earth have been replaced with these guys:
** Doppy who is Carl's {{Expy}} appeared in the pre-premiere commercials, and at the ending of the first episode, prompting Sheen to stare in [[JawDrop Jaw Dropped]] awe. Funny thing, Carl was going to be part of the show, but due to ExecutiveMeddling, Doppy took his place.
** Mr. Nesmith would appear to be Jimmy's counterpart of the show.
** Dorkus and Pinter are this to King Goobot and Ooblar.
** Aseefa seems to be Libby's counterpart, but acts more like Betty Quinlan or April from "Win, Loose, and Kaboom".
** Chock-Chock seems like this to Goddard.
** Princess Oom apparently is Brittany's Expy.
** Grish also seems to be this to Nick.
** Cindy is the only one of Sheen's friends who doesn't have a counterpart in this series.
* FishOutOfWater: Sheen is out of Retroville and in a brand new world.
* {{Flanderization}}: So much so that the entire trope could have been easily renamed Sheenization. While Sheen in the original show was definitely a hyperactive, geeky kid that could turn annoying every once in a while, every single trait of his character that might have been considered at least slightly serious (such as his genuine love and respect for his friends and father, his short-temper, as well as his bravery) is practically wiped out of existence for the sake of ''Planet Sheen''.
--> '''Mr. Nesmith''': Sheen, don't you think it's more important to focus on fixing the rocket, so we can return to Earth instead of having a milkshake?
--> '''Sheen''': I know that and we will, but my Uncle Miguel always said "You gotta stop and smell the milkshakes".
* FluffyTheTerrible: The warrior who can kill in over 107 ways, including emotionally...'''''Bobb'''''.
* FullNameBasis: In the pilot, Sheen calls Jimmy by his full name [[RuleOfFunny just to illustrate how dumb he is for not realising what the initials on the sticky notes stand for]].
* [[GreenSkinnedSpaceBabe Blue Skinned Space Babe]]: Aseefa.
* {{Gasshole}}: Aseefa becomes this after losing her roove in "Feeling Roovy". A roove is an animal living in Aseefa's throat that enables her species to yodel. Without it, she belches constantly.
* HugeSchoolgirl: Princess Oom is much taller than her father.
* IdiotHero:
** Sheen's the main protagonist and is still as dim-witted as ever.
** Doppy also goes under this category, but is mostly Sheen's sidekick.
* IdiotHoudini: Sheen always causes trouble in Zeenu, blames it on someone else and often lies to his friends, but never gets punished or called out for it.
* InterspeciesRomance: Sheen pursues a relationship with the alien Aseefa.
* MeaningfulName: Planet Zeenu's name [[StealthPun sure does]] [[GeniusBonus sound like]] "[[http://en.wikipedia.org/wiki/Xeno Xeno]]"
** Also, Dorkus Aurelius, who wants to become Emperor, is named after Marcus Aurelius.
*** It should be noted that Dorkus has shown zero desire to take over Zeenu as Emperor; it should also be noted that his only desire is for Sheen to be gone by any means necessary. Despite similarities, he is not Jafar.
* MissingMom: Dorkus and Princess Oom.
** Dorkus' mother is only mentioned and never appears in the show.
*** In the episode "Boy Next Dorkus"
-->'''Pinter:''' Alright, *picks a conversation starter card* if you were to go back in any time in history, when would it be?
-->'''Dorkus:''' Easy. My own birth to applaud my mother.
*** In the episode "Thanksgetting"
-->'''Dorkus:''' I hate that as a child I never got the Cloaked Avenger Action Figure with Magic Fire Breath, because my mother was all, *makes his voice higher pitched* "No! You'll burn down the house! Nyehnyehnyehnyehnyehnyeh..." It's all I ever asked for...

-->'''later in the same episode'''

-->'''Pinter:''' Ah, you see good things can happen to you when you open your heart.
-->'''Dorkus:''' Ooh...I wonder if it has the Magic Fire Breath my mother thought was "Oh so dangerous!" *he points the action figure towards his house and activates the "magic fire breath" causing his house to burn up and collapse* Oh Grock!
-->'''Pinter:''' Oh, it works...
*** In the episode "Act I Sheen I"
-->'''Dorkus:''' *walks out of his hiding place towards the group consisting of Sheen, Aseefa, the Emperor, Nesmith, and Doppy* Hello all.
-->'''Nesmith:''' *gasps* Where did you come from?
-->'''Dorkus:''' My mother...
** Princess Oom's mother, the Empress, never makes an appearance until the episode "Nightmare Sheenario" which is also the last episode she will be shown in.
*** According to Doppy, she comes out once every 365 days in order to retain her beautiful appearance.
* MyNaymeIs:
** D-O-P-P-tralalalalalalalalalala-Y. The tralalalalalas are silent, but felt.
** A minor recurring character's name is pronounced "Bob", but spelled "Bobb" according to the end credits.
* NeverMyFault: Sheen's friends tend to receive this treatment from Sheen whenever Sheen learns the episode's lesson, blaming them for making his dumb and selfish decisions.
* NoEnding: Does Sheen ever get back to Earth?
** It is implied in "The Tomorrow Boys" that Sheen '''did''' return to Earth. However, only he can make it happen, so he probably stayed on Zeenu forever.
* OnlySaneMan: Nesmith and sometimes Dorkus are shown as being the only rational ones.
* PottyEmergency:
** Sheen has one in the first episode after a long ride in a space ship.
** The entire episode "Gotta Go" has Sheen needing to pee and having trouble finding a restroom because the toilet at his house is clogged and he's unable to find any privacy.
* PutOnABus: The other ''[[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius Jimmy Neutron]]'' characters are nowhere to be seen, with Sheen being the only character to return from the original show.
** However, Carl had a cameo in the second flashback and Ultra Lord made a special guest appearance in another one.
* RubberForeheadAliens: A lot of the aliens look like humans with bizarre skin colors and facial features.
* RunningGag:
** Sheen's Uncle Miguel gets mentioned (and a picture of him is shown) quite frequently.
** Dorkus's house getting destroyed.
*** Only in the episodes where Dorkus appears and only when he is near his home.
* SeriesContinuityError: When Sheen first meets Doppy, it was very briefly at the end of the pilot, and Sheen clearly knew his resemblance to Carl. Then, come the very next episode and Doppy's proper introduction, Sheen does not catch his resemblance to Carl at all, not even after flashing back to all the good times they had together.
** Sheen also forgets everything that he knew in the original series.
* ShipSinking: Sheen's relationship with Libby is abandoned to instead focus on his feelings for Aseefa.
* ShoutOut:
** [[Creator/MichaelNesmith Mr. Nesmith]], the [[TheMonkees chimpanzee]], complete with trademark pompom hat.
** A one-off villain is named [[Toys/{{BIONICLE}} Bohrok]] the Destroyer.
* SimpletonVoice: Recurring character Bobb talks with a dumb-sounding voice, the same one his voice actor Creator/JeffBennett used for Big Billy of the Gangreen Gang in ''WesternAnimation/ThePowerpuffGirls''.
* SnapBack: "[=QuaranSheen=]" ends with most of the cast sent to a cave to be quarantined for an illness Sheen made up called dance fever, yet they're all free by the next episode.
* SpinOff: Of ''[[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius Jimmy Neutron]]'' of course.
* SplitPersonality: Princess Oom with her two faces.
* TalkingAnimal: Mr. Nesmith is a talking chimpanzee.
* ThatWasObjectionable: A few times in [[CourtroomEpisode "Trial By Jerry"]].
* TookALevelInDumbass and [[TookALevelInJerkass Jerkass]]: Sheen's time away from Earth has '''not''' changed his personality for the better.
* UnfortunateNames: The series' villain, Dorkus.
* UnknownRival: It never gets to Sheen's thick head that Dorkus wants him dead. The others are pretty clueless as well, save for Mr. Nesmith, who at least informs Sheen of his suspicions.
* VisualPun:
** [[WesternAnimation/TheAdventuresOfJimmyNeutron Carl]] wears glasses, thus making him a “four-eyes.” His {{Expy}} in this series ''actually has'' four eyes, complete with similar glasses. [[UpToEleven Behold the eight-eyed slug man.]]
** The planet, as seen during the intro, looks like the typical screwball design.
* WeaksauceWeakness: The Blurgs from "To Chill a Mocking Blurg" explode when they are complimented.
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