Voiced by Logan Grove(Season 1-3) Jacob Hopkins(Season 3-Onwards)
The main character (as indicated by the title). Gumball is a talking blue cat in middle school. A mischief maker and somewhat lazy, the show revolves around his various mishaps around Elmore. Tends to have questionable morals at times and can be a little selfish as well.
Nicole: Honey, are you in trouble? Because my mother senses are tingling. I can smell trouble. Gumball:(laughing nervously) Trouble? No, we're fine. Absolutely fine. No trouble here, bye. Nicole: Are you lying? Gumball: Ha! Oh, no, of course not. Nicole: Right. You're lying. I'm coming home now.
Deadpan Snarker: Seems to be getting more and more snarkier as the show goes on, especially regarding Darwin.
Depending on the Writer: His level of intelligence varies from episode. Sometimes he's a complete idiot, sometimes he's just mischevious, sometimes he just acts like a dork, sometimes he's the Only Sane Man...
In the latter half of Season 2 his Only Sane Man status is becoming the more distinct of them all.
Determinator: In "The Third" he rides a tricycle for 140 kilometers, flies down a hill so fast he catches on fire, and gets covered in quick drying cement (which he promptly breaks through) just to prove that he and Darwin are still friends.
Disproportionate Retribution: In "The Banana", when he decides to get back at Banana for chewing on Darwin's pen. Subverted, when he finds out what Banana accidentally did to Darwin's stuff. Then he starts to realize that this is is getting out of hand, but Darwin takes a far more step. In the end, a "huge" fight goes on between the three of them and it turns out the chewed pen was actually Gumball's and he actually chews on it all the time.
Embarrassing Middle Name: "The Club" reveals that his middle name is Trisha, short for Tristopher—it was supposed to be Christopher, but Richard wrote it down wrong.
No Sense of Direction: He think he can somehow memorize a map after eating it and when the wind is directly speaking to him in plainly decipherable language he does the exact opposite of what it tells him.
Strong Family Resemblance: He looks almost exactly like a shorter version of his mother. In "The Plan", he even tries to impersonate her and since he obscures the huge height difference by standing in a bush, it was amazingly effective.
Too Dumb to Live: In "The Bumpkin", when he gets stung by a wasp on his left index finger and then tries to suck out the poison. Guess what happens next...
Verbal Tic: He tends to squeak, usually when he's yelling. Some of this just seems to be due to Logan Grove's voice cracking.
Vocal Evolution: Along with Darwin, his voice has gotten deeper as of season 2. Most likely because his VA got older in the interim.
Voiced by Kwesi Boakye(Season 1-3) Terrell Ransom, Jr(Season 3-Onwards)
Gumball's pet goldfish-turned-family member after it sprouted legs, grew in size, and began to talk. Gumball and Darwin are seen as brothers (Darwin even calls Nicole "Mom") and attend the same school. Darwin is a bit naive due to his forced adaptation among the "normal" world, though he is more rational and moral than Gumball.
Only Sane Man: Though not necessarily the smartest person in any episode he's in, he's traded off on the role of "the only person being objective while everything's going nuts" with Anais on occasion, and has started playing the Straight Man to Gumball's antics more. Gumball basically says in "The Sidekick" that his role in their dynamic is to stop him from doing really crazy things.
Speech Impediment: In "The Sock," Gumball points out that Darwin has a lisp where his gills whistle. Darwin retorts with "You're so stinky, sailors sing sea shanties about how stinky you are!" making a whistling sound with every 'S'. This only happens for that one and only time, though. In fact, the very next sentence he says contains 'S'es without the lisp.
Vocal Evolution: Along with Gumball, his voice has gotten deeper as of season 2. Most likely because his VA got older in the interim.
Voiced by Kyla Rae Kowalewski
Gumball's genius little (rabbit) sister, who is his junior by eight years (Gumball is 12, she is 4). Due to her high intelligence, she attends Gumball and Darwin's middle school as well. Despite her competency, she still displays some traits of a typical four-year old.
Definitely made true in "The Remote," when she wants to watch a new episode of Daisy the Donkey on TV, but everyone else wants to watch something different at that same time, so she sets up a plot to be sure she is the only one home alone to watch TV.
It Is Pronounced Tro-PAY: Subverted. Her name is pronounced both as An-ai-ees and An-ai-ahs and she never favors one over the other. Given that Ben Bocquelet (the show creator) is French-British and named the character after his sister, the proper pronunciation of "Anais" is "An-ai-ees," and the proper spelling is with two dots over the "i" (´) to indicate two separate long vowel sounds (a long "i" as in "high" and a long "e" as in "piece").
Pint-Sized Powerhouse: She is depicted as being able to life way more than her body weight at a very young age at that. Such as when she carried a ton of luggage upstairs and the time she carried Darwin with a bunch of stuff on him all the way to the top of a mountain.
Not so Above It All: She's considerably more child-like—or even flat out crazy—when it comes to anything involving Daisy the Donkey.
Too Dumb to Live: In "The Goons", a rather rare one occurs, despite trying to be dumb for one day, she proved to be this near the end of the episode. When she and Gumball were raising blindfolded, after they make up for their flaws, the two of them remove their blindfolds, hug, and then get run over by Bert, who was riding on a wheelchair cart. While this is excusable for Gumball, since he was on the sidewalk and his back was turned towards Bert, the same can't be said for Anais, who was facing right at Bert moments before she's run over.
"Halloween" takes this trope Up to Eleven, when she drinks out of a green liquid out of a lab glassware, causing her to turn her into a ghost. Unlike "The Goons", however, her brothers also pull that same stunt.
Took a Level in Dumbass: In "The Authority", thanks to Granny Jojo. She gets better at the end though, thanks to Nicole.
The Ugly Guy's Cute Daughter: Especially noticeable in that when we see Nicole and Richard as children, you see Nicole and Gumball looks very similar but Anais doesn't really look like either of her parents.
Voiced by Teresa Gallagher
The maternal member of the Watterson family (and the same kind of cat as Gumball). She holds down a job at the rainbow factory and appears to be the only member of the family with any sense of responsibility. She's normally collected and organized but when things go awry, she succumbs to violent bouts of anger (almost always sparked by her sons).
Amazingly Embarrassing Parent: In "The Meddler" she decides to follow Gumball around at school everywhere, even in the public shower, doing things such as feeding him like a baby and calling him "Gummypuss".
Competition Freak: She has a huge drive to win. In "The Fridge", she wins the company paintball game by shooting everyone, even her own teammates, to win the game. She also tries to pull an I Surrender, Suckers moment to Gumball during the family paintball game and cheats Anais out of six spaces while playing "Dodge or Dare" with the family in "The Game" through Loophole Abuse.
Control Freak: Pointed out by Anais in "The Job." Anais thinks Nicole is worried about Richard working as a pizza delivery guy because she thinks it's upsetting the balance of power in the house When in reality Richard having a job will destroy the universe.
Cute Bruiser: Don't make her mad. She is a lot stronger than she looks.
Disproportionate Retribution: When Gumball and Darwin laugh at some of Richard's past screw-ups, not knowing he was within earshot, she hurls cement cupcakes at them and downright refuses to provide for them until they apologize, when all she needed to do was scold them for being rude.
Hair-Trigger Temper: Nicole cares for her family, but easily becomes upset when she discovers they did something wrong. She's even taking anger management classes, in which her behavior is far worse than she acts elsewhere.
Hartman Hips: Not including her head, her hips are the widest feature of her body.
Killer Rabbit: She has proven herself to be made of this trope in countless episodes, most notably in The Fight, where she mercilessly tears through Tina Rex's father just at the mere inkling of assuming that Gumball was being bullied.
Mama Bear: She's VERY protective of her own family.
Muscles Are Meaningless: In "The Authority" she's able to bend an IV rack in several different places and then bend it back to normal. Though it seems she only has this super strength when she's angry.
Not so Above It All: Nicole would be insufferable if not for her insecurity and occasional lapses in judgment.
Only Sane Woman: Depends on the episode, which sometimes gives the role to Anais instead. If she loses her temper, though, this goes out the window.
Workaholic: Played for laughs in "The Painting" when Principal Brown tells her to relax and stop working so hard for Anais's sake. But she's so used to it that she can't relax and does her household chores anyway, and then proceeds to trash the house on purpose to give herself more "work".
Voiced by Dan Russell
Gumball's father and Nicole's rabbit husband. Richard is very immature for his age and hates to have any sort of responsibility. He is also quite lackadaisical and sleeps frequently. As a result, Nicole is usually forced to be the parent to their children.
Amazingly Embarrassing Parent: In "The Hero", Gumball and Darwin fail to come up with something good for their dad and settles on embarassing moments. Unknown to the at them time, Richard overhears the conversation and leaves depressed.
The Ditz: It's easier to count examples of when he doesn't act like one.
Drives Like Crazy: He follows his GPS without ever paying attention to the road, including the direction he's facing. When he was high on anesthetics he crashed in several cars and parked in a swimming pool which Gumball considered an improvement.
Stout Strength: Apparently has this in "The Remote" when he effortlessly rips the car door off to get to Nicole.
Straw Loser: Gumball and Darwin actually look like rather intelligent and diligent beings compared to their father. Granted it almost reverses into being a gift for Richard since he's hopeless enough that people just give up trying to place any responsibilities onto him.
Poisonous Friend: Plays this to Gumball and Darwin in "The Skull," though to their credit Gumball and Darwin figure out he's a bad influence on them almost right away and break it off with him... only for him to attempt to lie his way back into their good graces.
Voluntary Shapeshifting: He can change into a lot of shapes, including other people (and fake their voices as well).
Art Evolution: Sorta. In Season 1, originally the only thing that can be seen of him was usually just his feet due to him being too big to fit in the screen. Other body parts of his would occasionally be seen also but he never appeared in full body view. In Season 2, he still retains his original depiction but from time to time, his entire body would be shown in full view, most notably in "The Colossus".
The Generic Guy: His mother was intentionally keeping him this way so he would never get emotional and go on a rampage.
The Unintelligible: He speaks in beat box and as a foreign exchange student everyone assumes he's speaking a foreign language. He actually knows how to speak English fine, but when a switch on his head is in the wrong position he can only play music instead of talking. Since he can't reach the switch or tell anyone else, it's been stuck like that for a long time.
Leslie the Flower
Voiced by Kerry Shale
Ambiguously Gay: Mostly blatantly shown in "The Mustache", when Gumball's butt suddenly becomes incredibly muscular and Leslie just stares. In "The Pressure", he's shown hanging out with a group of girls throughout the episode, with his presence never being noted; the other male characters mention him when talking about "the girls", and wordlessly joins in their expressions of interest in the idea of watching or kissing boys.
Leslie: There's a lot of things you don't know about me, Gumball.
Jerkass Fašade: It is revealed in "The Fight" that she isn't really a bully, she just acts that way because of her scary father and the fact that it is what people expect when they see a T-rex that Does Not Know Her Own Strength.
Cartoon Creature: "furry slug" is the most accurate description of what exactly he's supposed to be.
Humiliation Conga: He's quite prone to these. It first happens to him in "The Mystery" where he was slammed with a door by Mrs. Simian, leaving him dizzy and causing him to fall down the stairs, covering himself in toilet paper, then smashed into Penny's painting and falling into some burning chemicals, causing him to fall down MORE stairs and wrapping himself in more toilet paper, then finally landing inside Gumball's locker.
Happens again in "The Meddler', where Gumball crashes into him and he spills his hot coffee all over his face. He douses the coffee with a can of paint, burning his eyes; he washes off the paint with chlorine for the pool, burning off all his hair; and he finishes by neutralizing the chlorine with fertilizer, painfully growing his hair back. He is unscathed by the end of it, but he gives Gumball detention for potentially damaging his face.
Happens in "The Sock", though at a smaller scale. In this episode he has his head set on fire, and later he throws himself out of a window to "rescue" Miss Simian.
In "The Apology" Miss Simian repeatedly trashes his office in rage every time she fails to get Gumball and Darwin in trouble.
Reasonable Authority Figure: In "The Apology" he refuses to punish Gumball or Darwin unless he's given solid evidence and he threatens to fire Miss Simian if she keeps trying to frame them, in spite of his personal feelings for her.
Why Do You Keep Changing Jobs?: Runs pretty much every shop in town. Lampshaded in the "The Finale" where it is explained that because of the Wattersons' constant antics, he has to take on more than one job in order to pay for all the damage they caused for him.
Piss Take Rap: Has one about honesty; while dressed in a bear costume.
Scare 'Em Straight: Does this to Gumball and Darwin by showing them a grotesque diagram of the soul of a liar. This can also be applied to his sock puppet, the Silence Snake, whom he uses to scream at people and shock them into shutting up.
Straw Vegetarian: In "The Castle" he states he's only a vegetarian for the feeling of superiority.
Tuckerization: Named after a friend of the show's creator that also works in animation—the same one that made his character design, in fact.
And yet she has also shown to not be COMPLETELY heartless as she gave up her attempts to frame or catch Gumball and Darwin when they attempted to ACTUALLY get in trouble to save her dignity, her job and her relationship, and even attempted to clean up the mess they made to keep them out of trouble. Even when Darwin COMPLETELY milks the fact that she's actually saying sorry for her behaviour, she just chuckles. It's a surprisingly sweet moment for such a mean character.