!!Betty Boop
http://static.tvtropes.org/pmwiki/pub/images/imagesCA2AF8LP_9562.jpg

A flapper girl, looking for a good time and good at heart. Was gradually toned down post-1933, but is still remembered today as the peppy, cute youth of her early days.
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* AlliterativeName
* AmbiguouslyJewish: Hinted at in "Minnie the Moocher".
* AnthropomorphicShift: Originally appeared as a cartoon poodle, but gradually morphed into a cartoon human.
* CatchPhrase: "Boop-boop-a-doop!"
* TheFlapper: She was born as a caricature of this.
* GoodBadGirl
* HelloNurse: She got this reaction in most of her cartoons before the Hays Code kicked in.
* ImpossibleHourglassFigure: Betty Boop was described in a 1934 court case as: "combin[ing] in appearance the childish with the sophisticated a large round baby face with big eyes and a nose like a button, framed in a somewhat careful coiffure, with a very small body of which perhaps the leading characteristic is the most self-confident little bust imaginable."
* MsFanservice: She is regarded as one of the first and most famous sex symbols on the animated screen. Her popularity was drawn largely from adult audiences, and the cartoons, while seemingly surreal, contained many sexual and psychological elements.
* NewJobAsThePlotDemands
* SexyBacklessOutfit: Often wears these types of dresses.
* ShesGotLegs: She's got some of the nicest legs ever drawn.
* SoBeautifulItsACurse: In both the shorts ''Chess-Nuts'' and ''Boop-Oop-a-Doop'' where the bad guy lust for her and she need to be saved.
* TheTease
* VagueAge: She's either a teenager or young adult, depending on the short.

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!!Bimbo
http://static.tvtropes.org/pmwiki/pub/images/imagesCAC4TNSV_911.jpg

The initial star of the Max Fleischer ''WesternAnimation/{{Talkartoons}}'' series of sound cartoons, Bimbo is a cartoon dog, bred of the stock rubberhose art style of the time and the Fleischers answer to MickeyMouse. Betty was initially created to be his girlfriend, but ended up becoming so popular that Talkartoons became her own series, with Bimbo getting into many escapades with her, [[InterspeciesRomance some of which were romantic.]] However, once the Hays Office grew its claws in 1934, Bimbo was immediately abandoned due to the Codes rules against bestiality.
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* AllMenArePerverts: Er, dogs anyway.
* ArtEvolution: In his early appearances, the animators simply could not make up their minds as to how Bimbo should be drawn, resulting in him constantly changing design between shorts, until they settled into a final sweater wearing design.
* CatchPhrase: "Okay, colonel!"
* ChuckCunninghamSyndrome: As mentioned above, he was abandoned post-1933 due to the Hays Office objecting to Betty having InterspeciesRomance with him.
* HalfDressedCartoonAnimal
* InterspeciesRomance: With Betty, after she became human.
* MeaningfulName: During the 30's, anyways--back then, "Bimbo" was slang for "loser".
* SatelliteCharacter: After Betty became a series regular, Bimbo was rarely seen without her company.
* UnfortunateName: Of the "changed meaning" variety--back in the 30's, Bimbo was slang for "Loser." Making it a bit unfortunate to begin with.

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!!Koko The Clown
http://static.tvtropes.org/pmwiki/pub/images/koko_the_clown_3494.bmp

The original star of the Max Fleischer cartoon studio from the ''WesternAnimation/OutOfTheInkwell'' series, [[UsefulNotes/TheSilentAgeOfAnimation Silent Age cartoon veteran]] Koko the Clown made occasional appearances in the shorts as a copatriot of Betty and Bimbo.
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* CartoonCreature: Koko may be a clown, but he's certainly not human--he's more of an ink creature.
* TheCameo: Briefly appeared in his small form in the short "Minnie the Moocher". Fittingly, Betty pulls out him of an inkwell when she reaches for a pen, a nod to his original series.
* ChuckCunninghamSyndrome: Didn't make that many appearances in this series.
* NonIronicClown
* ThoseTwoGuys: When he teams up with Bimbo, such as in "Snow White".

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!!Pudgy
http://static.tvtropes.org/pmwiki/pub/images/pudgy_89.bmp

After Betty was cleaned up by the Hays Office, animator Myron Waldman decided to give Betty a new friend, a moon-faced puppy named Pudgy, to replace Bimbo (a character whom Waldman despised). In a sense, Pudgy is Fleischer's answer to WaltDisney's [[PlutoThePup Pluto]], but arguably much cuter.
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* CharacterFocus: Some episodes would be entirely centered around him.
* PreciousPuppies
* KindheartedCatLover: Befriends a small kitten in one episode.
* RidiculouslyCuteCritter
* TheVoiceless

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!!Grampy
http://static.tvtropes.org/pmwiki/pub/images/imagesCAR2GI4M_6202.jpg

Betty's grandpa, who happens to be a genius inventor.
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* AbsentMindedProfessor
* AscendedExtra: Was a recurring character of the later Betty Boop shorts, but was apparently liked enough to headline a ''WesternAnimation/ColorClassics'' short "Christmas Comes But Once A Year".
* BigDamnHeroes: By virtue of CarFu in "Be Human".
* CatchPhrase: "Ahahahaah! ''I've'' got it!"
* CoolOldGuy: Just ask the orphans in the aforementioned "Christmas Comes But Once A Year".
* GadgeteerGenius
* MacGyvering
* MrFixit