Cartoon Network gave the series premier a huge buildup: a "sneak peek" six days before the premiere (which also aired on Boomerang and streamed on the website), a countdown bug on-screen the day of the premiere, and at least one rerun a day for the entire week afterward. It was also renewed for a second season 2 months before the official premiere.
The Latin American version of Cartoon Network brings this trope Up to Eleven. They went to such extent to dedicate a whole day to the show. They also use them to announce the new stuff of the month and air reruns three times a day, everyday, and they often air clips of this show during the commercial breaks for no reason at all.
The United Kingdom puts Latin America to shame. On some weeks, Gumball reruns more times a day on the UK feed proportionally than Teen Titans Go! does on the US feed. Part of this is probably because Gumball is the first (and has remained the only) show produced by CN's studio in the UK.
Cartoon Network also put a lot of faith into the show by renewing a second season a week before the premier, though this could have been done as the show spends a long time in production. Cartoon Network later renewed the show for a fourth and fifth season before the third season had even started airing and, a few days before the fifth season started, renewed it for a sixth. Overall, next to Teen Titans Go, it's probably the network's most-aired series. Tellingly, the network continues to air frequent reruns of it after it ended, and shows no sign of stopping.
Darwin is often depicted as brown-skinned/Black in the fandom when made human, due to all of his voice actors being Black. Cut to season 6's episode "The Shippening", in which a humanized, anime-style Darwin is depicted with dark skin.
Teresa Gallagher is a singer in real life. She gets to properly sing as Nicole in "The Compilation" and "The Fuss", as Penny in "The Love" and "The Compilation", and as Teri in "The Compilation" and "The Singing".
Nicolas Cantu gets to show his singing in "Goodbye" ("The Uncle"), "If It's Too Hard To Forgive" ("The Parents").
Donielle T. Hansley Jr. did an impressive singing of "Without You" in "The Matchmaker".
Censor Decoy: Little Timmy in "The Schooling". In his original design◊, he looked Ambiguously Gay with his hair and clothing. His final design◊ makes it more like he's been wearing the same clothes since he was a child... Except for his high heels, jeans shorts with pink polka dot pants, and his crop top (even if it is because he outgrew the shirt).
Children Voicing Children: The initial voice actors for Gumball (Logan Grove), Darwin (Kwesi Boakye), and Anais (Kyla Rae Kowalewski) took the roles at approximately the age of 12, 11, and 9, respectively. About three years later, Gumball and Darwin were recast for the third season due to puberty: Gumball's new voice actor (Jacob Hopkins) was 11 and Darwin's (Terrell Ransom Jr.) was 10. Anais's original voice actor continues to voice her even as she enters her teens as Kowalewski can still make her voice sound young — and the fact that girls' voices don't change as dramatically as boys' voices do during puberty. In Season 5, Gumball and Darwin's new voice actors hit puberty and were recast again, with Gumball being now voiced by Nicolas Cantu, which was 13 years old when he was cast, and Darwin voiced by Donielle Hansley Jr, which was 12 years old when he was cast. A few episodes into Season 6, Donielle was replaced as Darwin's voice actor by Christian J. Simon.
Creator's Favorite Episode: A series of videos posted for Cartoon Network's Imagination Studios project had numerous staff talk about their favorite episodes (or possibly just their favorite in season three; the videos seem unclear).
Show creator Ben Bocquelet's favorite episode is the season finale "The Money".
Bocquelet's pet dog, Woody (yes, really) likes the episode "The Procrastinators".
Animator Yannis Boultadakis' favorite episode is "The Puppy".
Sarah Fell (producer) likes "The Pizza".
Richard Overall's (voice director and editor) favorite episode is "The Fraud".
Pascalita Bories (another animator) likes "The Joy" and considers Miss Simian her favorite character.
Juan Pedro's (another animator) favorite episode is "The Mothers".
Guillaume Cassuto's (one of the series writers) favorite episode is "The Shell".
Cross-Dressing Voices: Miss Simian, Tina Rex, Coach Russo, and formerly Sussie are all women voiced by men, though Coach and Tina are intended to sound masculine.
The character Teri (the hypochondriac paper cutout bear) is played by Teresa Gallagher. Given Teri is a supporting character and Gallagher also voices one of the main cast, this was probably a coincidence.
Anton is played by Anthony Hull.
Jessica (Alan's mother, whose name was revealed in "The Saint") is played by Jessica McDonald.
In "The Neighbor", it is revealed the Crocodile Woman is called Alison Sandra Gator. The "Sandra" on her name is a reference to her voice actress, Sandra Searles Dickinson.
Dawson Casting: With the exception of the Watterson children, the kid characters are played by adults.
Sussie's model and first/fifth season voice actor is Aurelie Charbonnier, one of the show's storyboard artists and the creator's girlfriend. Her screams and laughs are provided by the show's creator and Charbonnier's boyfriend, Ben Bocquelet. In seasons two, three and four, Fergus Craig is the voice of Sussie on the rare times that Sussie speaks coherently, though Aurelie's chin is always used for the character and Ben Bocquelet always does Sussie's screaming and laughing.
Billy Parham is voiced by Richard Overall, the show's voice director and one of its editors. He also performed some of the songs that weren't sung by a character, such as "Because We're Men" in "The Mustache", and played the physical model for the anchorman of Elmore News (albeit dubbed over by another voice actor) until he was Ret Conned into being a puppet made of newspaper in "The News".
Mic Graves, the series's director, voices Banana Joe, Banana Joe's father Banana Bob, the voiceover heard through "The Voice" which is actually William the flying eyeball's internal monologue which was also heard in The Compilation, Leonard Daniels, and Sussie's father (and also provides the chin).
Sussie's mother uses the chin of executive producer Sarah Fell.
Ben Bocquelet voiced New Bobert from "The Upgrade".
"The Mystery": The yearbook pictures for Alan and Tina both use their designs from the early reel.
According to an early production image, the fingerprint robber was going to study in Gumball's class. He was aged, but in "The Gi" he is shown in a flashback with his early kid design.
The class photo in "The Curse" that gets impaled by pencils has everyone but Darwin and Gumball as they were in the early reel.
"The Fridge": Nicole puts war paint on her face during the paintball game. The way she does it covers her whiskers, making them look longer, and thus more like they did in her character model before it was redesigned for the second season.
"The Skull": When Clayton shapeshifts into Banana Joe's form, he looks like Joe's first season character model instead of his current one.
"The Storm": Masami's crush on Alan is funnier when you realize that they were a couple in the pitch pilot.
"The Tape": The group shot where Gumball almost says the show's name is very similar to the end of one of the series's trailers, except that was in front of the Watterson house and everyone managed to say it. In "The Compilation" there is also a similar scene, with several characters singing in front of the Wattersons' house.
"The Void": Darwin's CGI design from the pitch pilot can be seen floating around, as can a rejected design for the Watterson house.
Executive Meddling: In the skateboarding scene from "The Ollie", Simon Landrein, the animator of it, had to face several censorship conflicts during production of the animation. For instance, he included Gumball skating around a hot dog car, simply because he "was not allowed to show him passing over the hood of a moving car, a gesture considered dangerous and that children might want to reproduce."
Fake American: Most of the cast besides the voice actors for Gumball, Darwin, and Anais are British, Scottish, or Irish voice actors doing American Accents. Technically averted with Dan Russellnote Richard, Mr. Fitzgerald, the Coach, Paperball, Pantsbully, shooting star, bandage doctor, Hank, jolly hamburger, Donut Cop, and Tina in the first season and Sandra Searles Dickinsonnote Granny Jojo, Mrs. Jotunheim, the pink cupcake lady, Alison, Felicity, Banana Barbara, Karen, and from Season 3 onwards, Joan Markham, the Band-Aid school nurse, who are American actors based in the UK. Similarly, numerous characters are voiced by Kerry Shalenote Bobert the robot, Hector the giant, Leslie the flower, Larry the rock-head clerk, Sal Left Thumb, Harold in Season 1-4 and 5 until The Cycle; Alan the balloon and Idaho the potato (sometimes) in the first season, and Mike the Microphone Guy, who is Canadian and currently living in London.
In September 2014, an user of the Gumball Wiki named the gray construction man George back in September 2014, and, even though it was never stated to be his name, the name stuck among the fans and was used for years. The user who first made this fake name also made up names for other characters, like calling Penny's sister "Holly" (in the end, he was wrong by one letter; her name is Polly), but the other made-up names didn't stick.
Flashback with the Other Darrin: A flashback in "The Name" redubs the scene from the first season episode "The Curse" where Gumball is riding down the highway in a mop bucket shouting, "I'm gonna make it! I'm gonna make it!" with Jacob Hopkins' voice instead of Logan Grove's. The same goes for a flashback with Darwin in "The Extras" to the second season episode "The Sweaters" where Darwin's line "This is boring! b-b-b-b-boring!" was done by Terrell Ransom, Jr. rather than Kwesi Boakye.
Ben Bocquelet stated in the interview that the Working TitleGumball, which later became the main character's name, came from thinking of things a child would randomly have in his pocket.
The episode "The Money", particularly the climax where the Wattersons' lack of money causes the show's animation to get cruder and more low-budget until everyone—except Gumball—signs the contract, was inspired by the show's budget always running out by season's end.
The family copying the Wattersons in "The Copycats" is inspired by a real series of Chinese commercials that blatantly plagiarized Gumball's art style, character design, and even individual scenes. The commercial advertised a brand of goat milk called "Miracle Star", hence the scene where Gumball first meets his doppelganger while looking at containers of powdered goat milk. Storyboards of the episode actually featured the Miracle Star characters exactly, rather than parodies thereof in the final episode.
Jossed: "The Shell" revealed that Penny is actually a shapeshifting fairy. This pretty much blew away the popular fan theory that, because of her antlers, she was a deer under her shell.
Teresa Gallagher voices Nicole, Penny, Mrs. Robinson, Jackie, Teri, Polly, Siciliana Pepperoni (in Season 2-3), Joan Markham (in Season 2), Carmen (in Season 1), among others, and each one of them has their own unique voice.
Dan Russell voices Richard, Patrick, Dr. Butt (in The Goons only), Coach, Tina (Season 1), Hot Dog Guy (Seasons 2-4, The Nest, and The Diet), Bandage Doctor, Hamburger Cop, Donut Cop (Season 2 onwards), Mr. Chanax, Paperball, Hank, Ripley 2000 Manager, Gary (Season 2 onwards), Marvin (Season 2 onwards), shooting star, and Donald (Season 4 onwards)
Gumball was voiced by Nicky Jones (aka Chowder) in the early reel version of the show while Darwin was voiced by Jake Pratt.
Between seasons 1 and 2, many characters changed voices:
Lewis MacLeod quit the series, so his roles were recast between Steve Furst (Principal Brown), Hugo Harold-Harrison (Ms. Simian and Rocky Robinson), and Dan Russell (Donut Cop).
Rupert Degas also left, and his roles were passed to Adam Long (Mr. Small), Max Cazier (Clayton, if he was voiced by Rupert Degas), Hugo Harold-Harrison (Tobias, Felix sometimes) and Stefan Ashton Frank (Gaylord Robinson).
Aurelie Charbonnier was the original voice of Sussie in the show's first season. From season two to the present, British comedian Fergus Craig replaced Charbonnier as Sussie's speaking voice (while Charbonnier's chin is still used as the character and Bocquelet still does Sussie's screaming and laughter).
A few others changed voice actor despite their original voice actor still playing other characters: Alan the balloon and Idaho the potato went from both being voiced by Kerry Shale to both being voiced by Hugo Harold-Harrison; Carmen the cactus went from being voiced by Teresa Gallagher to being voiced by Alix Wilton Regan; Tina Rex went from being voiced by Dan Russell to being voiced by Stefan Ashton Frank.
Both Gumball and Darwin were recast in season three from Logan Grove and Kwesi Boakye to Jacob Hopkins and Terrell Ransom, Jr. respectively due to their original voice actors hitting puberty and sounding too old for their roles. The season three premiere "The Kids" is both a farewell to Grove and Boakye and an introduction to Hopkins and Ransom, Jr. They in turn were recast midway into season five by Nicolas Cantu and Donielle T. Hansley, Jr, respectively. Darwin was replaced again shortly into season six by Christian J. Simon.
In the third season, Rocky went from Hugo Harold-Harrison to Simon Lipkin and Jamie the bully went from Jessica MacDonald to Maria Teresa Creasey, even though Harold-Harrison and MacDonald still voice other characters.
Almost all voices were recast in the Hungarian version after season 1, save Gumball, Darwin, Nicole, Anais and a few side characters. Season 3 changed even more voices, including Gumball's, Darwin's and Nicole's. Now Anais, Banana Joe, and Penny are the only characters with their original voices.
While the host segments in "The News" are done by puppets in the final episode, in an earlier version they were done with live-action actors. This version was enough for a complete cut of the episode that actually aired in several countries.
Out of Order: Episodes often air out of production order, which was stated by one writer to be why no multi-part episodes were planned in its early episodes (there eventually were in the fourth season). Plus, the Halloween episodes are always aired in October, which resulted in "The Ghouls", the 43th and penultimate episode of season six and the series in production order, to be only the 25th episode in the season in airing order.
Production Nickname: The Orange Lady with blue hair that appears in Season 6 and the pink Checkout Clerk from "The Brain" are called "Blue Lady" and "Dill Pickle Boy", respectively, by staff members.
Prop Recycling: As mentioned in the main page quote, a lot of the characters on the show are rejected advertising mascots Ben Bocquelet had in his portfolio that he didn't want to throw out or remodel in the hopes they get accepted.
"The Procrastinators" is similar to "The End", because in both episodes, Gumball and Darwin try to do as many things as possible before a time limit ends.
"The Saint" and "The Best" are both about Gumball trying to bring someone perfect to his level. Also, the characters from the respective episodes are boyfriend and girlfriend (Alan and Carmen)
"The Vegging" is somewhat similar to "The Laziest", since Gumball and Darwin are trying to do nothing but just relax on the couch.
"The Misunderstandings" can be seen similarly to "The Pony", as both episodes have Gumball rushing to a location before it's too late and having to deal with several, often cringe-inducing obstacles along the way.
Saved from Development Hell: Season 6 was meant to premiere with the episode "The Future", but it was delayed due to heavy production. It eventually aired as the 33rd episode.
"The Stink" was originally supposed to premiere on April 27, 2018, and "The Awareness" was supposed to premiere on May 3, 2018, but were replaced by reruns of Teen Titans Go! and Unikitty!, respectively. The latter episode was accidentally uploaded on VOD services, however. In the US, they both premiered in November.
Series Hiatus: Likely because of its multi-medium format increasing production time and how everyone on staff works to make sure every episode is made with care, the first two seasons of Gumball took about one-and-a-half times as long to come out per episode as most cartoons of similar length, which is why there can be anywhere from three weeks to a couple of months between new episodes in the same season. By the third season, production apparently sped up, bringing it more in line with others shows on the same network.
Short Run in Peru: Several times the series has gone on an extended hiatus in the middle of a season, leading episodes to premiere in other countries before reaching U.S. and U.K. audiences:
UK* Given the show is made in the UK, but with the US as its primary audience, one could debate whether episodes premiering in the UK are examples of this trope or the only ones where this trope does not apply.: "The Mystery", "The Microwave", The Meddler", "The Fight", "The Apprentice", "The Hug", "The Wicked", "The Scam", "The News"* Finished version., "The Stink", "The Awareness"
Spain: "The Virus", "The Pony", "The Hero", "The Dream", "The Sidekick", "The Photo", "The Storm", "The Possession", "The Future", "The Wish", "The Factory", "The Mess", "The Revolt", "The Heart"
Middle East and North Africa (Arabic dub): the last nine episodes of season two (from "The Promise" to "The Finale"), "The Origins" (also premiered in the Netherlands on the same day), "The News"* Unfinished version.
Chile: "The Oracle"
Latin America: "The Helmet", "The Safety" (original English dialogue and not dubbed in Spanish)
Portugal (Portuguese dub): The last four episodes of season three ("The Downer", "The Egg", "The Triangle", and "The Money")
France: "The Ape", "The Curse", "The Wicked", "The Nest", "The Scam", "The Stink", "The Awareness", "The Master", "The Silence", "The Future"
Hilariously, both Principal Brown and Ms. Simian were voiced by Lewis MacLeod in the first season, despite them being lovers.
Richard has had scenes where he talks to Mr. Fitzgerald, the Doughnut Sheriff (after season one), and the Ripley 2000 manager, all of whom are voiced by Dan Russell.
All the police officers are voiced by Dan Russell, except for the female Coffee Cop (who is the only female police officer), the Doughnut Sheriff in Season 1 (when there weren't any other cops), and the soda can cop.
Troubled Production: The show's production had a rather rocky start because very few of the crew members hired were experienced in doing TV. This resulted in major organizational restructurings and numerous delays that the show's creator is thankful for not getting in trouble for.
Four episodes were scrapped in the first season: two were called "The Mom" and "The Pizza", the other two weren't named. The premise for the two named episodes may or may not have been reused for the season three episodes "The Mothers" and "The Pizza".
Season two had an episode planned called "The Rex" which would have fully introduced Tina's father and have been a parody of/homage to Jurassic Park. It was cut because it would have gone over budget. Mr. Rex eventually ended up showing up in full anyway in the fourth season episode "The Routine".
Working Title: The show was first planned to just be called Gumball, but after deciding that would be the main character's name, it was lengthened to its final name. Some individual episodes also changed name mid-production:
"The World" was at one point named "The Objects".
"The Extras" was originally titled "The People"
"The Fraud" was originally called "The Phoney"
"The Void" was originally called "The Hole".
"The Boss" was originally called "The Heart" (and thus presumably Mr. Robinson's injury was heart-related instead of "stuffing deficiency"). That title was later reused for a Season 6 episode.
"The Question" was originally "The Answer".
"The Origins" was "The Roots", though "The Roots" is repurposed as the title of a later episode in the same season.
"The Rerun" was originally "The Disaster: Part 2".
"The Singing" was originally called "The Music".
"The Cage" was originally called "The Octagon".
"The One" was originally called "The Right" for unknown reasons.
Ben Bocquelet has described Richard, Nicole, and Anais as caricatured versions of his family members that they're named after and Gumball as being based on his perception, as an adult, of what he was like as a kidalthough Between different interviews, Bocquelet has expressed ambivalence as to how much Gumball is based on himself. In one video, Bocquelet said he considered Gumball more of a character, another staff member said Gumball reminded them of Ben often, and Bocquelet sheepishly emphasized that he's not that stupid.. Darwin was inspired by several childhood friends that spent so much time at Bocquelet's house that they felt like members of the family. One, named Paul, was also bald and had a similar personality.