- Voiced by Stefan Ashton Frank (Ant-One), Anthony Hull (the others)Debut: Season 3, "The Recipe"
Numerous clones of Anton that Darwin and Gumball made in "The Recipe" using an everyday toaster. Among them, only the first two clones were named: the burnt first one, who named himself "Ant-One", and the second, which Gumball and Darwin named "Ant-Two".
- Evil Twin: After surviving being burnt, Ant-One comes out of the garbage can to try and replace the original Anton.
- Expendable Clone: Although Darwin and Gumball worry about getting in trouble for making them, almost all of them die, and nothing seems to come of it.
- Literal Genie: They're so naive that they'll follow whatever orders they hear first as literally as possible, even taking "split up" to mean "tear yourself in half".
- Not Enough to Bury: Ant-One falls into a pool and is torn to pieces by the grate of the drain he's sucked into.
- Sole Survivor: Ant-Two is the only clone left at the end of "The Recipe". The "real" Anton also died, but he was just a different line of clones that would presumably be replaced again by his parents, raising the question of exactly what happened to Ant-Two.
- Too Dumb to Live: All but Ant-One have even fewer self-preservation instincts than the real Anton, even directly causing their own deaths just because some random people told them to.
- Verbal Tic: Ant-Two repeats the last words of something someone else said.
- Debut: Season 6, “The Ad”Bernie voiced by: Garrick HagonEthel voiced by: Liza Ross
- Debut: Season 1, “The Responsible”Voiced by: Toga Igawa
- Debut: Season 1, "The Date"Voiced by: Unknown
Penny's pet tarantula who was thought to have died in "The Date". He seems to really, really hate Gumball.
- Bus Crash: He wasn't with the Fitzgerald family when they were standing outside their burning house at the end of "The Bros". That implies, probably accidentally, that Mr. Cuddles died in the fire or was already dead for some other reason.
- Fluffy the Terrible: Despite the name, he's a tarantula, and a fairly aggressive one.
- Talking Animal: Like all animals in Elmore, he showed that he could talk in "The World", but doesn't do it normally.
- Debut: Early reel/Season 1, "The DVD"
Not only is every individual object in the Elmore alive and sentient, but Elmore in its totality seems to possess some sort of intelligence. Although it hasn't talked or shown a face like any of the others objects or the planets, "The Void" heavily implies the world itself was responsible for the void's creation and "mistakes" being sent into it.
- Allegorical Character: Its modus operandi is pretty much that of an author who doesn't mind changing their world retroactively or doing terrible things to their characters for the sake of making the story more interesting.
- Eldritch Location: It's an entire town that can warp reality.
- It's also implied to exist beyond its own time, having banished the platybelodon (an elephant ancestor) to the Void.
- Genius Loci: Elmore is able to decide what things the world would be better without, then send them to the void. Mostly, it gets rid of dated fads and inefficient technology, but people may go out as well. Being sent to the void isn't necessarily a one-way trip; it's possible to enter the void and retrieve something within it, though it is very dangerous to do so.
- Greater-Scope Villain: It is responsible for Molly's disappearance and is the reason how Rob turned into the Big Bad. It is also implied that the events that occurred in "The Vegging" where not just its doing, but also by someone!
- Reality Warper: The world can send things and people to another dimension, suppress most memories of them, and cover up evidence that they ever existed. Given the void's pattern flashed at the end of "The Kids", it might also be responsible for Gumball and Darwin's voice changing. It doesn't have absolute power, however, as Mr. Small, Darwin, and Gumball were able to remember anyway and break Molly out of the void before they were all sealed in. But even then The Void erased their memories of the whole ordeal so they wouldn't be able to tell anyone.
- Totalitarian Utilitarian: If it will make the world better, it will take people and make them spend the rest of their life in an infinite nothingness with only other mistakes for company. Naturally, it also wants to keep this a secret, even if it means sealing people who it didn't think of as mistakes in that same void. Of course, since it is the world, utilitarianism and selfishness are one and the same.
- In "The Vegging", it ends up trying to get Gumball and Darwin to do something for the episode to the point they put their family in a dangerous situation only they can solve! Then it is implied at the end that someone was behind the events as the message was trying to warn them them.
- Walking Spoiler: Simply knowing that the world has a will of its own is a major part of the twist of "The Void".
- Voiced by NoneDebut: Season 3, “The Void”
- Animate Inanimate Object: A van.
- Debut: Season 1, "The Microwave"
A strange creature accidentally created when Darwin and Gumball's "gross jar" is heated in a microwave. He eats basically anything and eventually anyone, growing larger all the time.
- I Love Nuclear Power: Gumball claims Kenneth was created by "the atomic power of the microwave", though microwaves actually have nothing to do with nuclear radiation.
- It Came from the Fridge: Kenneth originated when a bunch of gross stuff Gumball put in a jar was put in the microwave.
- Miracle-Gro Monster: It's voracious eating habits let it keep growing and growing until, after a few days at most, it goes from approximately football-sized to two stories tall.
- Monster of the Week: Kenneth is not mentioned after "The Microwave" until he reappears in "The Finale" when Richard takes him out of storage.
- Muck Monster: Kenneth body looks like it's made of mud or sludge. Rather than being industrial waste, he's simply made of all the gross things Gumball could collect, including used tissues, bird poop, belly-button lint, and spoiled milk that was swallowed then regurgitated.
- Sealed Evil in a Can: In "The Finale", it turns out Kenneth was dealt with offscreen by reducing him to his original size again, putting him in his original jar, and freezing it. He's unsealed as part of the Watterson family's The Last Dance.
- Ugly Cute: In-universe, Gumball and Darwin certainly think Kenneth, as their "son", is cute, and Anais reluctantly describe it using these exact words. At least before he starts growing to tremendous proportions after eating people alive.
- Voiced by Rebecca Sloan (Howdy), Baker Terry (Frank, Grady)Debut: Season 5, "The Puppets"
A trio of puppets named Howdy, Frank, and Grady. Darwin and Gumball played with them about seven years ago, but kept them packed away in the attic since. They may or may not be alive, but either way they have a bone to pick.
- Ascended Extra: The Monster of the Week in "The Puppets", but they also star in about half of the ''Waiting For Gumball" shorts.
- Bright Is Not Good: Frank and Howdy are brightly colored children's toys, and Grady's clothes are similarly colored, and they all want to torture their owner for not playing with them.
- Creepy Monotone: Grady always speaks in a monotone voice. He lampshades this when he betrays Gumball.Grady: This...was a trap...for you...Dum, dum, dum...
Gumball: What was that?
Grady: Dramatic music cue. It probably would have been better if my voice wasn't so flat.
- Dark Reprise: Downplayed, in that said "The Fun Will Never End" was already a Villain Song (albeit an upbeat one), but after it's revealed that Grady tricked Gumball, the tune shifts into that of a creepy musicbox/carnival feel and the lyrics get darker.
- Faux Affably Evil: They act like they just want to play with Gumball and Darwin, but really want to sadistically torment them to get back for being abandoned. Howdy and Frank are more blatant examples than Grady, considering they kidnap Darwin and force him to party with them.
- Maybe Magic, Maybe Mundane: It's not really clear if they're actually sentient, albeit requiring a puppetmaster, or just a figment of Darwin and Gumball's imagination.
- Oh, Crap!: The Puppets have a moment like this when Darwin pulls on their loose strings.
- Revenge: Though the puppets nominally wanted Darwin and Gumball to play with them again, they eventually decided the "fun" they want is a Fate Worse than Death in retribution for being left in the attic. They also smash up their gaming console, because video games were what diverted the kids' attention away from their puppets in the first place.
- Woobie, Destroyer of Worlds: Its' implied in "Waiting for Gumball" that at least Frank was lashing out because he missed Gumball and Darwin.
- Voiced by Kerry Shale (sun), Derek Jacobi (male moon in "The Night"), Dan Russell (in "The Compilation") Alix Wilton Reagan (Female Moon)Debut:
In the universe of this show, it's not just things on Earth that are alive, but Earth itself and other celestial bodies.
- Adorkable: The Moon and Sun in "The Love".
- British Accents: In "The Debt", the moon and Saturn have Estuary accents. All the planets and the moon have generic American accents in every other scenes until "The Question", where every planet (but not the sun) has an Estuary accent.
- Genius Loci: They're cable of thinking, speaking with each other and people on Earth, and singing.
- Smug Super: They're bigger than you, will live longer than you, and flat out tell Gumball that his life and everyone else's are insignificant. What they don't get is that even their existence is finite, and end up wasting the rest of their lives rubbing their superiority into the face of someone who can't hear them.
- Time Abyss: Since they're planets, they've been "alive" for billions of years and will be for billions more.
- Weird Moon: The male moon has visible butt cheeks, which it enjoys shoving into Earth's face, sometimes while singing.
- Weird Sun: The sun can swing around the horizon to complain about people making too much noise at night. In "The Dress" it was even small and close enough for a balloon to float into it.
- You Don't Look Like You: Since they're only characters in a loose sense, their voices and appearances (besides the photographs of real planets) change over time and according to the demands of the plot. The moon, for instance, had a female voice in "The Love", "The Boredom" and "The Box" but has a male voice in every other appearance. Although the female moon seems to be more consistent because she has always been voiced by the same person, had the same appearance, and has always been dating the sun.
- Voiced by: Hugo Harold-HarrisonDebut: Season 2, "The Internet"
The literal personification of the internet.
- Anthropomorphic Personification: He's the whole internet, and especially the G.I.F.T., personified as one room full of monitors and a screen for a face. In "The Intelligence", he's shown to apparently embody all technology, and him shutting down brings people back to the dark ages.
- Ascended Extra: In “The Internet”, he was just a Monster of the Week, but he returned in “The Love”. He became a recurring character halfway through the final season, when it was way too late to actually become a recurring character.
- Basement-Dweller: Timmy lives in a dark room in his mother's basement. He might not be capable of leaving, but it doesn't seem like he'd want to anyway.
- The Bus Came Back: Originally just a Monster of the Week in "The Internet", but came back in one segment of "The Love" two seasons later.
- Everything Is Online: The Internet is able to hack traffic signs, police records, power lines (not just the power going through them, the physical object), and fire hydrants to keep Darwin and Gumball away. So they just take a path through the park.
- Fourth-Wall Observer: "The Spinoffs" shows he is aware The Amazing World of Gumball is a TV show, and Rob capturing him lets him alter the show itself.
- G.I.F.T.: Timmy directly invokes the power of anonymity for being a jerk.I can be a jerk to anyone, while I'm behind the screen, in the safety and comfort of my own home.
- It's All About Me: Feels he’s entitled to meddle with people’s lives For the Evulz and claims no responsibility for his action. When put under threat, he will pretty much bargain that the internet's value justifies his actions.
- Jerk with a Heart of Jerk: When Gumball and Darwin’s decide to spare him, he viciously rejects their pleas to consider other people or take responsibility for his actions.
- Made of Evil: Gumball claims the Internet, "like a goatee", it made out of evil.
- Voiced by Kerry ShaleDebut: Season 2, "The Virus"
A sentient virus and leader of a new strain that mutated on Gumball's unwashed hand. Teri forced Gumball to wash that hand, killing all his soldiers and setting him off for revenge.
- Adaptive Ability: It's constantly mutating, causing it to gain strange properties such as flight and infecting computers instead of people.
- Avenging the Villain: The virus was the commander of a virus army and Sole Survivor of Gumball washing his hands. He swears he'll avenge them by infecting and killing Gumball, his family, his friends, and everyone else until "nothing is left alive on the surface of the Earth".
- Boisterous Weakling: Its ability to infect and control things make it genuinely dangerous, but in spite of all the boasts, it does not understand that its extremely small size makes it physical harmless to anything close to human-sized.
- Even Evil Has Loved Ones: Despite being an evil virus, he did truly care for his comrades.
- Evil Sounds Deep: Played with; anytime it's in closeup, it's voice sounds very deep. Farther shots, however, show that its voice is extremely high-pitched from a subjective perspective because it's so small.
- Extra Eyes: It has three eyes, though given it's a virus any of the eyes are "extras".
- Guttural Growler: It speaks with a very guttural voice.
- Monster of the Week: He's dead by the end of the episode he premiered in.
- Monstrous Germs: He has flagella that are like limbs and give a humanoid build, three eyes, and his visible organelles act like a face.
- Multi-Armed and Dangerous: It has eight tentacle-like protrusion that it uses like two legs and six arms.
- The Nameless: He never goes by any name, and as a virus, he probably doesn't even have one.
- Proud Warrior Race Guy: It speaks of infecting a body like waging a war and is extremely offended at Gumball calling it a coward.
- Undignified Death: For the sake of proving its might, it agrees to fight mano-a-mano against Gumball, who is millions of times his size, and is immediately Trampled Underfoot.
- Voiced by Jacob HopkinsDebut: Season 3, "The Name"
An intolerable split personality Gumball develops upon finding out his real first name in "The Name".
- Asshole Victim: Gumball more or less kills Zach, albeit in self-defense and maybe by accident. Considering Zach was an independent consciousness, this might have significant moral implications... but he's such a jackass that no one gives it a second thought.
- Cool Cat: Zach definitely tries to invoke the "confident" form of this trope, even wearing sunglasses, but everyone just thinks he's a tremendous douche. He even proudly declares that "There's a new cat in town!" shortly after appearing.
- Cool Shades: He suddenly starts wearing neon-purple rimmed shades from nowhere, which really aren't very cool looking, and work more like Sinister Shades.
- Crazy-Prepared: One genuine skill he demonstrates is planning all sorts of tricks to delay the other Wattersons, even putting a trap in his pocket for when they'd try to frisk him.
- Differently Dressed Duplicates: You can tell when Zach is controlling Gumball's body because he pops the (non-existent) collar on Gumball's sweater.
- Enemy Within: To Gumball. They both have huge egos and usually fall flat on their face because they try to look cool. However, while Gumball can show compassion and empathy belatedly, Zach is a straight up jerkass. Also, unlike Gumball, who recognizes his own failures, and lives with them, Zach refuses to acknowledge any of his shortcomings or losses, going so far as to alter the memories of his/Gumball's failures to turn them into victories.
- Evil Sounds Deep: When Zach is in control, Gumball speaks in a deeper voice. However, it's so obviously affected that instead of being intimidating it just makes Zach sound like more of a poser. In his last scene in Gumball's mind, however, his voice starts getting pitched down and slightly distorted, being more of a genuine example of this trope.
- Fascinating Eyebrow: He's raising one of his eyebrows almost constantly, which leads Darwin to tell him he "spent the whole day with one eyebrow raised, behaving like a horrible jock".
- I Reject Your Reality: He maintains his disillusions of greatness and popularity in the face of all evidence and words of others. He goes so far as to consciously and completely alter his memory of events so he'll look better in them.Zach: Hey Carrie, I think we really nailed the song last night. We're totally gonna win the battle of the bands, man.
Carrie: You're not in a band. I'm not in a band. I bet you can't even give me the name of a band.
Zach: Psh, yeah, like... Germany.
- Jerkass: Zach is amazingly impolite, has an almost pathological disregard for and lack of awareness of other people, and literally won a contest for being obnoxious.
- Jerk Jock: Zach thinks he's a jock, despite not being on any sports teams, not being able to ride his skateboard well, and generally not being any more athletic than Gumball was before.
- No Body Left Behind: When Gumball finally beats Zach at something, bits of him start chipping off, showing a bright light in his silhouette as he's torn to pieces. Although this of course wasn't really a "body" to start with.
- Small Name, Big Ego: For all the misplaced confidence Gumball has expressed, Zach is much worse in this regard than Gumball ever was. Gumball would always acknowledge his shortcomings eventually; Zach does not and seems to believe his own hype with all his heart.
- Split Personality: Gumball initially seems to be acting obnoxious when he finds his real name, but Zach becomes a separate entity before he even notices.
- Split-Personality Takeover: He attempts to do this by altering Gumball's memories until he's erased.
- Super-Powered Evil Side: Played with. There isn't as much focus on Zach being evil as being a huge jerk, though he really is evil, as he planned to erase Gumball's original personality so he didn't have to share. He's also not really that much better at most things than Gumball, he's just extremely confident and obnoxious. But when mentally confronting his other, less-confident side, said confidence provides a tremendous advantage. But it's also his biggest weakness, as Gumball is mentally resilient enough to take losing all the time, but the one time Zach is forced to face defeat it literally destroys him.
- Smug Snake: His boundless pride directly leads to Gumball beating him.
- Third-Person Person: Zach always refers to himself in third person, likely to emphasize he's not Gumball, and it's definitely the "arrogant" form.
- The Unapologetic: He accidentally bites part of Kayvon's face off and shows no regrets for it, because "Zach does what he wants".Zach doesn't apologize, he uses his charm.
- Undignified Death: Zach is destroyed in Gumball's mindscape, then Gumball immediately farts, his body literally clearing out the hot air.