[[folder:The Kids]]
!! Timothy
!!!Played by: Austin Dilulio

The main character of the show. An excitable 5-year-old raccoon who often helps his friends with their problems. He is best friends with Yoko.

* CheerfulChild
* CompanionCube: A toy penguin named "Pengy."
* DoggedNiceGuy: To Yoko.
* TheEveryman
* TheHero
* [[NiceGuy Nice Boy]]: One of the nicest characters in series with Yoko and Lilly.

!! Yoko
!!!Played by: Lisa Yamanaka

A sweet-natured Japanese cat who plays the violin and is [[PuppyLove very close to Timothy]]. She's also Timothy's best friend

* BreakoutCharacter: Yoko debuted in the original book of the same name "Timothy Goes To School" but later gotten her own series of books and is one of RosemaryWells's most beloved characters.
* BreakTheCutie: Poor Yoko has gotten this three times in the show.
* DisappearedDad: Although we do see her aunt in few times in the show
* CheerfulChild
* GreenEyes
* TheIngenue
* TheCutie: One of the nicest characters in the series along with Lilly and Timothy.
* JapanesePoliteness
* NiceGirl
* NaiveEverygirl

!! Fritz
!!!Played by: Laurie Elliott

Timothy's intelligent badger or skunk friend who sometimes knows even more than the teacher, but tends to be messy.

* BunglingInventor: One of his inventions didn't work, and it got him down.
* FreakyIsCool: He likes insects.
* PutOnABus: In "Fritz on the Move."
** TheBusCameBack: He returns in "Many Happy Returns", only 1 episode later.
* TheSmartGuy
* WiseBeyondTheirYears

!! Charles
!!!Played by: Max Morrow

A shy little mouse who finds it hard to talk in front of others, but has a great imagination. He mostly plays with Timothy, Yoko, and Lilly.

* CowardlyLion
* MrImagination: He's often shown to be one of the more imaginative students during play.
* TheNapoleon: He doesn't have the bad temper, but he's sensitive about his height.
* ShrinkingViolet
* [[WhyDidItHaveToBeSnakes Why Did It Have To Be Spiders?]]

!! Nora
!!!Played by: Alyson Court

A noisy mouse who earned the nickname [[ExactlyWhatItSaysOnTheTin Noisy Nora]] who tends to be a bit bossy and sulky. Nora enjoys her mother reading her stories. She has a baby brother named Jack and a sister named Kate that's about 3 years older than her. She owns a pet lizard named Norman who later in the series moves to Hilltop School in order to live in a bigger aquarium.

* AbhorrentAdmirer: To Timothy in "The Greatest", if only because she became overly-reliant on him and made him do everything for both her and others when anyone had the smallest problem.
* BrattyHalfPint
* MiddleChildSyndrome
* TheNapoleon
* NoIndoorVoice
* [[WhyDidItHaveToBeSnakes Why Did It Have To Be Dinosaurs?]]: She gets over it when she finds out that not all dinosaurs are huge.

!! Lilly
!!!Played by: Mag Ruffman

A forgetful and airheaded fox who is often seen with a ribbon tied around her finger so she remembers things. Lilly moved to the neighborhood recently from somewhere down south and has her first snow day during the series. She eventually becomes best friends with Nora.

* CuteClumsyGirl
* DisappearedDad
* TheDitz
* TheCutie
* DoesNotLikeSpam: She doesn't like mustard or strong peppermints because they burn her tongue.
* ForgetfulJones
* SpellMyNameWithAnS: Although episode titling and other official resources clearly indicate that her name is "Lilly," the spelling is so unusual that it's regularly misspelled on the Internet as "Lily" and it's not at all unusual to see both spellings in pages about the series.
* TheIngenue
* TheOneWhoWearsShoes: She and Mrs. Jenkins are the only characters on the show who wear shoes.
* KindheartedSimpleton
* SimpletonVoice: A rare female example.

!! Doris
!!!Played by: Tracy Ryan

A boisterous beaver who likes sports and is the tallest in the class, but the smallest in her family.

* AbhorrentAdmirer / HopelessSuitor: Seemed to be an implied one for Timothy in the first episode, but it was dropped afterwards.
* TheBigGirl
* EveryGirlIsCuterWithHairDecs: She wears a bow on her head.
* GenkiGirl
* HugeSchoolGirl
* OutnumberedSibling[=/=][[TheOneGuy The One Girl]]: She is the only girl child in her family while her siblings are boys.
* PinkMeansFeminine: Inverted. She wears a pink dress but she's not really feminine.
* {{Tomboy}}: She is sporty, not afraid to get dirty, and likes to play soccer with her older brothers.
** TomboyAndGirlyGirl: The Tomboy to Grace's Girly Girl when they go to dance class.
** TomboyWithAGirlyStreak: She wears a pink dress and has a pink bow, and likes to do ballet.
* TrademarkFavoriteFood: Seems to be squeeze cheese.
* [[WhyDidItHaveToBeSnakes Why Did It Have To Be Bugs?]]

!! Frank & Frank
!!!Played by: Darren Frost (Frank #1) and Rob Stefaniuk (Frank #2)

Twin French bulldog brothers who love playing sports and playing pranks. They like to play together and often speak in unison.

* BookDumb: Implied.
* CatchPhrase: "Me before you, me first!" "No, ''me'' before ''you'', ''me'' first!" "...Okay, we'll both go first!"
* CompanionCube: For Frank #2, a stuffed bulldog named "Bully"
* FurryReminder: They like to drink from the faucet.
* {{Jerk Jock}}s: Can be somewhat like this at times.
* {{Leitmotif}}: They have one that generally seems to play whenever they're doing they're "me before you, me first" routine, or otherwise goofing off.
* MissingMom
* {{The Prankster}}s
* SingleMindedTwins
* TrademarkFavoriteFood: Franks & Beans
* TricksterTwins

!! Claude
!!!Played by: Joanne Vannicola

An arrogant raccoon who seems to be good at everything. He had a bit of a rivalry with Timothy at first but they soon became good friends. He is mostly seen with Grace.

* TheAce: But ''not'' at swimming. His revelation of this to Timothy helps mend bridges between them.
* BookWorm: Unusual for his character archetype, he's the one who is usually seen on his own reading a book
* DeadpanSnarker
* MissingMom
* {{Pride}}
* SpiritedCompetitor
* TheBully: To Timothy in the first episode only.
* TheRival: To Timothy until he shows Claude how to swim in "Taking the Plunge."
* TookALevelInKindness: Toward Timothy after "Taking the Plunge." Helping Claude learn how to swim helped them become good friends.
* [[WhyDidItHaveToBeSnakes Why Did It Have To Be Water?]]: Until Timothy teaches him how to swim.

!! Grace
!!!Played by: Linda Kash

A somewhat snobby upper-class cat who likes dancing, especially ballet and figure-skating. She is mostly seen with Claude.

* AlphaBitch
* CatsAreMean
* DeadpanSnarker
* GirlyGirl: She is upper-class, loves dancing, hates getting dirty and gross things, and likes things to be perfect.
** TomboyAndGirlyGirl: The Girly Girl to Doris's Tomboy when they go to dance class.
* NeatFreak
* PinkMeansFeminine: Her ballet outfit is pink and she is very feminine.
* {{Pride}}
* TookALevelInJerkass: In the episode "Abracadabra", she takes a peek in Fritz's magic book and steals the talent for one of his tricks which causes him to get mad and blame Timothy.
* TrueBlueFemininity: She wears a blue dress and she is very feminine.

!! Juanita
!!!Played by: Susan Laney Dalton

A Spanish cat who just transferred to Hilltop School in the last two episodes and was a bit anxious to leave her mother.

* NaiveNewcomer
* SixthRanger


[[folder:The Adults]]

!! Mrs Jenkins
!!!Played by: Fiona Reid

Formerly Miss Abercrombie; Mrs Jenkins is the class' fox teacher.

* CatchPhrase: "Quick sticks, children."
* {{Meganekko}}
* TheOneWhoWearsShoes: She and Lilly are the only characters on the show who wear shoes.

!! Henry
!!!Played by: Jamie Watson

A cheerful beaver who is the school's janitor and bus driver. He used to be Mrs Jenkins' student back when she was Miss Abercrombie.

* NiceHat: He has one that he wears sometimes when driving the bus.

!! Miss Appleberry

A student teacher badger or skunk who sometimes appears to help out, or cover for Mrs Jenkins.