Main •
Kaeloo (Kaelou) (voiced by
Emmanuel Garijo in French and Andy Chase (pilot), Doug Rand (Season 1), Matthew Géczy (Season 2) and
Vincent Tong (Season 5) in English) - The titular character and main protagonist. She is an energetic and fun-loving but emotionally unstable and short-tempered
tree frog who's always looking for games to play with her so-called "buddies" and often proposes suggestions to make everyone happy. While normally gentle and loving by nature (though she does have several crueler moments), when pushed too far, Kaeloo enters an intense, upset-fueled rage that transforms her into the hulking "Bad Kaeloo". Kaeloo has
dissociative personality disorder and is
gender-ambiguous in the French dub of the series; no one knowing her gender is a running gag, and it is implied that she is
non-binary,
intersex, or
genderfluid. Kaeloo tends to prefer female pronouns, while Bad Kaeloo prefers male pronouns. Kaeloo is re-written to be female in most of the other dubs of the series; however, the Italian, Serbian, Hindi and Season 5 English dubs, and the first 10 episodes in the Season 1 English dub, have her re-written as male. •
Bad Kaeloo (Bad Kaelou) (voiced by Emmanuel Garijo in French and Doug Rand (Season 1) and
Ian Hanlin (Season 5) in English) - Whenever Kaeloo gets angry or frustrated enough, she transforms into this form, a male, hulking and brutish yet slow-witted
toad. While she has stated in an early episode that the transformations must be triggered by anger, she has been seen in several episodes deliberately taking this form to cheat at games that require a level of physical prowess or to intimidate others. While remaining impulsive and brutal throughout the series, Bad Kaeloo gradually becomes calmer, kinder, gentler, and less fond of mindless acts of sadistic violence, and by season 5, Kaeloo can control her anger and transformations by subconsciously communicating with Bad Kaeloo through a bubble that appears next to the head of the one in control. •
Stumpy (Moignon) (voiced by Rémi Chapotot in French and Doug Rand (Pilot and Season 1), Andy Chase (Season 2) and
Cole Howard (Season 5) in English) - A dim-witted and accident-prone
red squirrel, fascinated by video games and comic books, alongside explosions, superpowers, intergalactic wars and anything remotely dangerous. He has little-to-no sense of reality, is often delusional, not very bright and immature, and generally comes up with the craziest ideas or reasonings, but means well. •
Quack-Quack (Coin-Coin) (voiced by Rémi Chapotot in French and Doug Rand (Season 1) and Vincent Tong (Season 5) in English) - A
duck who is incapable of speech, only able to say his name, though everyone seems to understand what he is saying most of the time. "The Origin of Quack-Quack" details his backstory; whilst still in his egg, his parents were killed by a hunter. He was taken in by scientists who experimented on him, increasing his intelligence and making him indestructible. •
Mr. Cat (Monsieur Chat) (Hector) (voiced by
Philippe Spiteri in French and
Christian Erickson (Pilot), Mike Powers (Season 1),
David Gasman (Season 2) and
Paul Dobson (Season 5) in English) - Mr. Cat is a greedy
bengal cat who always wants to win, and is even willing to cheat to do so. He especially enjoys torturing Quack Quack with his arsenal of weapons, which upsets Kaeloo and is the usual cause of her transformation into Bad Kaeloo. Despite (or perhaps because of) Kaeloo's transformations, he seems to have developed a crush on her; the feeling is reciprocated, and while they are not officially a couple, the other characters often talk about their feelings for each other and about them becoming a couple. It is implied in several episodes that he had an extremely difficult past that left him mentally, emotionally, and physically traumatized and had terrible relationships with his family, especially his brothers. Over the course of the series, he steadily becomes much nicer as a person, though he never completely sheds his cynical and tough edge.
Secondary Season 2 •
Pretty (voiced by
Dorothée Pousséo in French and Barbara Weber-Scaff (Season 2) in English) - A pink
rabbit fashionista who is obsessed with fashion, beauty and all things stereotypically "girly". She is selfish, narcissistic, aggressive and regularly puts down those around her for petty reasons. Pretty has a crush on Mr. Cat (not that the feeling is even close to being reciprocated) and will go to extreme lengths to woo him. In season 5, Pretty befriends the four main characters, stops bullying them, and gets over her crush on Mr. Cat. •
Eugly (voiced by Rémi Chapotot) - Pretty's
fraternal twin sister and polar opposite. Unlike Pretty, Eugly is ugly and fat, but has a very nice personality. Her immense strength makes her capable of intimidating or physically assaulting people, but she rarely does so of her own accord, usually only under Pretty's orders. Eugly is very emotional, and will burst into floods of tears at even the slightest insult. She eventually becomes Quack Quack's girlfriend. In season 5, Eugly leaves Smileyland to attend an art school, and her role is reduced to occasional cameos as a result. •
Olaf (voiced by
Féodor Atkine in French and Matthew Géczy (Season 2) in English) - A Russian-accented
emperor penguin who would like to take over the world and
cover it with snow and ice, but is ultimately ineffectual. He is "married" to an ice cube named Olga and has a robot fridge named Serguei. In season 5, Olaf has a calmer and gentler personality, and is now an artist, which he enjoys using to express his emotions. •
Olga - Olaf's "wife", an ice cube. She was once gigantic, but gradually began melting from heat, so Olaf put her under a glass dome to prevent her from evaporating completely. While she seems to be not much more than an inanimate object, in the episode "Si on jouait au réchauffement climatique", Quack Quack speaks with Olga's "consciousness". •
Serguei - A sentient robotic fridge who serves as Olaf's henchman. It resembles a penguin, can move and perform all sorts of actions, but is speechless. Olaf can climb inside and use it as a mecha to compensate for its small size. •
Mini-Serguei - A smaller variant of the more commonly-seen Serguei, Olaf's mini fridge can be seen in the last two episodes of season 2 and throughout season 4. A Mini-Serguei also serves as a keychain in one episode of season 3.
Season 3 •
Ursula (voiced by
Sophie Michard) - A
black cat, Stumpy's long-distance girlfriend who he met online, and one of the few people to actually treat him well and see what's in him beyond his unattractive looks and stupidity. She is mostly just mentioned in passing conversations between the other characters, or in the rare event she is physically present in the episode, offscreen. In the first season, Ursula's existence is often questioned. Indeed, we never physically see her and she is only mentioned by Stumpy. We can assume that Stumpy met her on Fakebook and that he saw her for the first time in reality in the episode "Let's Play Hot – Cold" where, thanks to Kaeloo's advice, he seduces her. But, since no one else has seen her face to face, the other characters come to wonder if Ursula is an imaginary girlfriend. This uncertainty remains in season 2 where in the episode "Si on jouait à la boom", she does not come to the Valentine's Day party, much to Stumpy's dismay. Pretty even claims that she does not exist, "like his sister". It is only in season 3 that Ursula's existence is confirmed when she appears in person at the end of the episode "Si on jouait à chercher Ursula... désespérément" (albeit offscreen), where we learn that she is very beautiful. •
Kevin,
Kurt,
Karl,
Klaus,
Karen (Karine),
Krystal,
Kahuna (Kilian) and
Kimiko (all voiced by Emmanuel Garijo) - Kaeloo's cousins, who are all toads. With the exception of Kevin, they (especially Kurt and Karl) are all exceedingly cruel and love to make jokes at other people's expense. We never see or hear of Kaeloo's parents.
Season 4 •
The Sheep (all voiced by Rémi Chapotot, Valentin Papoudof, Sarah Teyssier-Miko, and
Adrien Antoine - The sheep sometimes participate in the main four's games, albeit usually unwillingly. For the first three seasons, the sheep were just regular, non-anthropomorphic sheep that could not talk and served as little more than props. In seasons 4 and 5, they are more active, animated, and capable of speech. Hervé is the leader of the sheep and the one who talks the most.
Season 5 •
The Rules of the Games/Game Rule (La Règle du Jeu/M. Règle) (voiced by Valentin Papoudof in French and
Travis Turner in English) - A floating robotic alien that acts like a personification of the concept of rules and the main antagonist of season 5, having been sent to supervise Smileyland and fix the other characters' blatant disregard for rules when they play games. Game Rule takes games very seriously and imposes bizarre penalties on people who break the rules, but is friendly and cheerful towards those who follow the rules properly. In the original French dub, Game Rule is referred to with female pronouns, but in the English dub, they are
non-binary and referred to by neutral pronouns. •
Law and
Order - Game Rule's demanding and strict parents and the overarching antagonists of season 5, who are revealed near the end of the series. Game Rule is concerned about pleasing them and meeting their high expectations, even if it may come at the expense of Game Rule's own happiness. Concept art posted on Chapotot's website reveals that they have nicknamed Game Rule "Ru-ru". • '''Stumpy's Sisters''' (all voiced by Emilie Rollot) - In the first four seasons, a running gag was that everyone (occasionally including Stumpy himself) didn't know if Stumpy's siblings were real or not, and jokes would often rely on their existence being ambiguous. Starting in Season 5, the existence of them (seven younger sisters) is finally confirmed, and the gag is retired as a result. In order, they are: •
Checkout (Ardoise) - The helpful one who is good at handling finances and marketing. •
Moldie (Cramoisie) - The abrasive bully-in-the-making who likes insulting and harassing others. •
Lavenblah (Lavanade) - The quiet one with supernatural powers. •
Me-Me (Nombril) - Stumpy's younger sister who always wants people's attention, especially his. Her catchphrase is "Stumpy, do you see me?". •
Snitchy (Poucave) - An inquisitive child who aspires to become a journalist, which she practices for by spying on people to write about them. •
Purplish (Violasse) - The one who carries a balloon everywhere and has terrible luck that constantly lands her into bad situations. •
Vitamin (Vitamine) - Stumpy's sister who is so hyperactive that she moves at super speed and cannot interact with the world around her. • '''Stumpy's Parents''' - Stumpy's mother and estranged father. The audience knows little about their identities, and most of what the audience does know of Stumpy's mother in particular is from what Stumpy says, which is implied to be disproportionately skewed to make her look worse than she actually is, though she is at least caring enough to stop him from juggling chainsaws in "Let's Play Circuses". Seasons 2 and 5 reveal that Stumpy's parents never married and the father was a "scary" alcoholic who used to come home red in the face. He eventually left the family, leaving his girlfriend to raise their eight children alone. •
The Cat Family - Mr. Cat's parents, Al Chatone (voiced by Philippe Spiteri) and Lola Felicia (voiced by Rémi Chapotot), and his two older brothers. They are strongly suggested to have been abusive to Mr. Cat, who eventually ran away from home to escape their abuse, meeting and befriending Kaeloo, Stumpy and Quack Quack along the way. "Let's Play with Snitchy" depicts that the mere sound of Lola's voice on a phone call is enough to make Mr. Cat have a panic attack strong enough to have to flee the scene, screaming to get away from her all the while. Al is stated to be an alcoholic gangster in "Si on jouait à il fait quoi ton père?". Mr. Cat's brothers used to violently abuse him for being their mother's favorite child. They never appear physically in the show and are only mentioned in passing by Mr. Cat. == Episodes ==