open/close all folders
Main Characters
Caillou
- Voiced by: Bryn McAuley (1997-2000); Jaclyn Linetsky (2000-2003); Annie Bovaird (2003-2010); Logan Nicholson (CGI specials and 2023 reboot)
Meet Caillou! Caillou is a 4-year (3 in some season one episodes) old boy, and the main character and main protagonist of his TV series. His interests include cars and dinosaurs.
- Adaptational Karma: The reboot actually has a few episodes where he gets punished for acting like a brat.
- Aesop Amnesia: In the earlier episodes, he tends to forget that the world doesn't revolve around him.
- Attention Whore: Occasionally, but most notably in "Big Brother Caillou", wherein he pinches Rosie just because she got more attention than he did.
- Big "NO!": Has a tendency to let these out whenever angry or upset.
- Bratty Half-Pint: Depending on the Writer. In some episodes he's bratty while in other's he's cheerful.
- Characterization Marches On: Infamously, Caillou was originally a spoiled brat that whined if something didn't go his way. However, around season 3 or 4, this side of him was toned down, and he became more of an imaginative and naïve child curious about the world around him. Of course, that didn't stop people from
remembering him for how unlikable he once was. - Charlie Brown Baldness: He's only 4 and completely bald. This is because he was originally a 9-month old baby in the books, and looked unrecognizable with hair.
- Cheerful Child: It depends on the writer, though.
- Cool Big Bro: Whenever he and Rosie aren't fighting.
- Depending on the Writer: He's either a Nice Guy with a big heart or a brat who throws tantrums.
- Does Not Like Spam: He doesn't like the taste of olives. This is the main premise of a Season 5 episode where he struggles to tell his grandma to stop feeding him olive-based foods since he doesn't like olives.
- Hair-Trigger Temper: In some episodes in the older seasons, he can get really angry and throw tantrums over petty stuff like not getting to go to the circus on the day he thought it was or when Rosie was wearing his teddy bear shirt.
- Heterosexual Life-Partners: With Leo.
- Hypocritical Humor: In "Caillou Joins The Circus", he says this moments after throwing a tantrum about the circus."No! I don't want to make duckies, that's for babies!"
- Innocently Insensitive: In the earlier episodes, he can do things that he doesn't realize are rude or selfish, thankfully, he grows out of it.
- Intergenerational Friendship: With Mr. Hinkle.
- It's All About Me: In the earlier episodes, he can be really bratty & self-centered if things did not go his way.
- I Want My Mommy!: He has a tendency to yell out for his mom if something bad happens in the earlier episodes.
- Karma Houdini: His parents frequently don't discipline or even scold him for misbehaving.
- Kiddy Coveralls: In some episodes that take place when Caillou was three, he's occasionally seen wearing overalls and he can still be a Bratty Half-Pint at his worst.
- Large Ham: Whenever he's throwing a fit.
- Masculine Girl, Feminine Boy: A platonic example with Sarah. Caillou is less athletic then Sarah and cries somewhat more then she does.
- Meaningful Name: His name means "pebble" in French.
- Mr. Imagination: He developed into one in the fourth season, though these segments were discontinued in the fifth season.
- The Napoleon: He's small in height and can be a brat at times, in the older episodes at least.
- Nice Guy: While Caillou can be bratty and selfish, he is normally a friendly kid.
- Only One Name: His last name is never revealed.
- Prone to Tears: He is infamous for this, especially in the first two seasons of the show.
- Rail Enthusiast: He loves trains like Boris and his grandfather.
- Sensitive Guy and Manly Man: With Leo. He cries somewhat more than Leo does.
- Small Name, Big Ego: In older episodes, he can act selfish at times, believing everything revolves around him.
- Spoiled Brat: At times. He grows out of this the later seasons.
- Took a Level in Kindness: In the first season, he can be pretty whiny and bratty at times. In the second and third seasons, his bratty side was toned down, and he had more nicer moments with his family and friends. In the fourth season, all his flaws disappeared and he was an complete Nice Guy in every episode. In the fifth season, though, he can act rather selfish at times but it would usually be unintentional and he would get over it pretty quick and was still a nice kid overall.
- Unwanted Assistance: Tends to refuse help from his parents to show that he can do it himself
- Unsympathetic Comedy Protagonist: An unintentional example; Caillou is meant to be kind and imaginative but can come off as bratty, spoiled, and arrogant many times.
Rosie
- Voiced by: Brigid Tierney; Jesse Vinet; Christian Churchill (CGI specials and 2023 reboot)
Meet Caillou’s little sister, Rosie! At 2 years old, Rosie is a giggly little girl who loves to play tricks on her big brother. She also loves playing with Caillou who helps her navigate the big world ahead of her.
- Adaptational Dye-Job: Was usually blonde in the books. She was probably changed to a red-head as a play on her name.
- Adaptational Jerkass: While Rosie was a Nice Girl in the original series if not an Annoying Younger Sibling at times, she comes off as a bit of a Spoiled Brat in Caillou's New Adventures.
- Annoying Younger Sibling: Depending on the Writer, she'll annoy Caillou to no end. "Rosie Bothers Caillou" is the biggest example.
- Baby Talk: Earlier episodes depicted Rosie as speaking this way. However, she grows out of it in later episodes.
- Black Bead Eyes: Her eyes are shown as black dots.
- Depending on the Writer: Rosie will either be a sweet girl who plays nice with Caillou or somebody who annoys him to no end.
- Girly Girl: She loves to play tea parties and with stuffed animals.
- Hollywood Genetics: She has red hair even though her parents have differing shades of brown hair.
- Innocently Insensitive: She doesn't intend to annoy Caillou, but her behavior does bother him quite a bit.
- It's All About Me: Surprisingly not as bad as Caillou, but she has her moments of selfishness. Justified in that she is only 2.
- Jerk with a Heart of Gold: downplayed, Rosie is overall a nice and happy girl but she can be very stroppy and whiny at times.
- Jerkass Ball: In episodes in which she is characterized as a Bratty Half-Pint or an Annoying Younger Sibling to Caillou.
- Nice Girl: Very sweet.
- Only One Name: Like her older brother, she isn't given a surname.
- Prone to Tears: She tends to cry over everything.
- Third-Person Person: To be fair though, she's only two.
- Tomboy and Girly Girl: The Girly Girl to Clementine and Sarah's Tomboy.
- True Blue Femininity: She wears a blue dress and is girly.
- Unwanted Assistance: Much like Caillou, she tends to refuse help from her parents to show that she can do it herself.
- Why Did It Have to Be Snakes?: She was scared of clowns at first, but Caillou helps her get over it.
Boris
- Voiced by: Pat Fry; Tyrone Savage (CGI specials and 2023 reboot)
Meet Caillou’s Dad, Boris! Caillou loves to help his dad fix things around the house or have fun at the park. Caillou can always count on his dad to be goofy while learning important life lessons.
- Beware the Nice Ones: "Caillou Joins The Circus" is one of the few times we see Boris get visibly angry.
- Good Parents: To Caillou and Rosie.
- Happily Married: To Doris.
- Nice Guy: Reasonable and friendly.
- Only One Name: He has no known surname.
- Rail Enthusiast: Just like his father and son.
- Reasonable Authority Figure: Boris is pretty patient with Caillou. Pretty impressive, considering this is Caillou we're talking about....
- What the Hell, Hero?: In "Caillou Joins The Circus", he lets Caillou have it when the latter throws his memetic temper tantrum.Boris: Caillou! Stop all this racket! You woke up Rosie! I want you to come downstairs right now!
Doris
- Voiced by: Jennifer Seguin; Stephany Seki (CGI specials and 2023 reboot)
Meet Caillou’s Mom, Doris! Although some know her in the workplace as Doris, she’s known as Mommy in Caillou’s household. Caillou loves to help his Mommy with grocery shopping and running errands – they even love to bake and do arts and crafts together!
- Eek, a Mouse!!: A variation. She fears hamsters.
- Good Parents: She's a loving and kind mother.
- Happily Married: To Boris.
- Jerkass Ball: Sometimes acts more strict than usual.
- Nice Girl: Motherly and patient.
- Not Now, Kiddo: See here
for an entire list of times she's had her "too busy excuses". - Only One Name: Like everyone else, her last name isn't said.
- Reasonable Authority Figure: Pretty easy to reason with.
- Why Did It Have to Be Snakes?: She's not fond of hamsters.
Rexy
Caillou’s toy dinosaur, who is curious about everything and is full of energy.
- A Lizard Named "Liz": He's a Tyrannosaurus Rex and he's called Rexy.
- Keet: Rexy is always full of energy.
- Leeroy Jenkins: He never looks before he leaps.
- Suddenly Voiced: In the puppet segments.
- Vegetarian Carnivore: “Dinosaurs love vegetables! Well, this one does at least.”
- What the Hell Is That Accent?: Rexy has some kind of Hispanic accent.
Teddy
Caillou’s Teddy Bear, who used to belong to his daddy. Teddy loves to hug and play with his best pals, Rexy and Gilbert.
- A Lizard Named "Liz": He's a Teddy Bear, and he's called Teddy.
- Beary Friendly: A kind-hearted and mild-mannered Teddy Bear.
- Cool Old Guy: He's older than Rexy and Gilbert but he's still nice and fun-loving.
- Deadpan Snarker: Whenever Rexy goes overboard when they’re pretending.
- Nice Guy: He’s as cuddly as Teddy Bears come.
- Sad Clown: During his more gloomy moments, such when Caillou forgot to take him on vacation or feeling that he might get a different bear.
- Suddenly Voiced: In the puppet segments.
- Wide-Eyed Idealist: He once tried to fly around the neighborhood.
Gilbert
- Cats Are Snarkers: He's an affectionate cat, but is also the most sarcastic of the trio.
- Cute Kitten: Not an actual kitten, but is still cute nonetheless.
- Nice Guy: Loving, affectionate.
- Suddenly Voiced: In the puppet segments.
Supporting Cast
Grandma
- Voiced by: Pauline Little
Meet Caillou’s Grandma! Grandma loves to garden and spend time outdoors! She is always showing Caillou creative ways to overcome challenges but especially loves painting & gardening with her favorite grandson!
- Cool Old Lady: She's an affable grandma.
- Does Not Like Spam: She doesn't like Beetroot.
- Happily Married: To Grandpa.
- Nice Girl: Amiable and nice.
Grandpa
- Voiced by: George Morris
Meet Caillou’s Grandpa! Grandpa always takes Caillou on fun adventures – like fishing, riding the bus through town and camping! He is Caillou’s Daddy’s father and loves telling Caillou stories about his dad when he was little.
- Cool Old Guy: And how!
- Happily Married: To Grandma
- Nice Guy: A Cool Old Guy.
- Rail Enthusiast: He likes trains.
- The Storyteller: He enjoys telling Caillou stories about Caillou's father when he was younger.
Mr. Hinkle
- Chuck Cunningham Syndrome: Disappears after season four and replaced by a new character called Mrs. Howard.
- Cool Old Guy: Pretty fun to be around.
- Intergenerational Friendship: With Caillou.
- Last-Name Basis: Always referred to as "Mr. Hinkle", but his name is revealed to be Paul in one episode.
- Nice Guy: Hinkle is a fun guy.
Leo
- Voiced by: Johanne Garneau (1997-2003); Vince Davies (Caillou's Holiday Movie); Jonathan Koensgen (2006-2008); Graeme Jokic (2010); Lucien Duncan-Reid (CGI specials and 2023 reboot)
Meet Caillou’s Best Friend, Leo! Ever since Caillou met Leo in Day Care, these two mischief makers have been inseparable and always know how to have a good time – whether they are relocating the sandbox by hand or pretending to be dinosaurs!
- Agony of the Feet: He hurts his foot in "A Friend In Need".
- The Bully: When he first appears, he bullies Caillou. This is dropped after a quick Heel–Face Turn.
- Evil Redhead: Only in his debut.
- Heel–Face Turn: It's easy to forget that he was a bully in his first appearance.
- Heterosexual Life-Partners: With Caillou. After becoming best friends, they are inseparable and usually play together the most.
- I Want My Mommy!: Says this after he hurts his foot in "A Friend In Need."
- Nice Guy: He becomes Caillou's best friend after his Heel–Face Turn.
- Nice Jewish Boy: He's a kind boy and Jewish to boot.
- Only One Name: Like most Caillou characters.
- Sensitive Guy and Manly Man: With Caillou. He doesn't cry as much as Caillou does.
- Youthful Freckles: Around Caillou's age, and has freckles.
Clementine
- Voiced by: Brigid Tierney; Markeda McKay (CGI specials and 2023 reboot)
Meet Clementine! A tomboy at heart, Clementine loves exploring the outdoors and especially loves finding insects! Fueled in part by her older brother Billy, Clementine is fearless and often encourages Caillou to take on ever-greater challenges, such as climbing to the top of the big kids slide.
- Black Bead Eyes: Has these eyes.
- Nice Girl: She is sometimes a little bossy but overall she is understanding.
- Only One Name: Her last name is unknown.
- Outdoorsy Gal: She likes playing outside.
- Tomboy and Girly Girl: Tomboy, along with Sarah, to Rosie's Girly Girl.
- Tomboy with a Girly Streak: While she does enjoy playing outdoors and with dinosaurs, she also enjoys playing with stuffed animals and having tea parties.
Sarah
- Voiced by: Amanda Tilson
Sarah is six-year-old and knows so many neat things, like what it feels like to lose your front teeth! Confident and capable, Sarah teaches Caillou about the wonders of reading and writing and often shows Caillou things he’s never seen before – like chopsticks and the inside of the big kids’ school!
- All Asians Know Martial Arts: She practices martial arts.
- Big Sister Mentor: Can sometimes play this role with Caillou.
- Cool Big Sis: Towards Caillou. They are not actually related, but she still acts like one.
- Does Not Like Spam: She doesn't like Bok Choy.
- Masculine Girl, Feminine Boy: A platonic example with Caillou. Sarah is more athletic then Caillou and doesn't cry as much as he does.
- Nice Girl: Sarah is quite friendly.
- Only One Name: Sarah hasn't been given a last name.
- Outdoorsy Gal
- Tomboy: She likes boyish activities.
- Tomboy and Girly Girl: Tomboy, along with Clementine, to Rosie's Girly Girl.
Miss Martin
- Cool Teacher: Pretty well sums her up.
- Friend to All Children: Which makes sense considering she is a teacher.
- Last-Name Basis: Called "Miss Martin" by everybody.
- Nice Girl: Is very kind and patient with her students.
- Prim and Proper Bun: Miss Martin has a bun.
Jason & Jeffrey
Left: Jason, Right: Jeffrey
A pair of twins that goes to Caillou's daycare.- Innocently Insensitive: One episode had them teasing Xavier, but they revealed that they did not intend to offend him.
- Jerk with a Heart of Gold: They might cause trouble and once made fun of Xavier, but they're still good people to have around.
- Only One Name:
- Palette Swap: Their shirts are striped, but their shirts have inverted color schemes in Seasons 4 and 5. Averted in their early appearances, when they wore identical shirts, leading to many a prank involving a Twin Switch.
- Those Two Guys: Practically unheard of to see them apart.
- Took a Level in Kindness: In Season 4, they become more comical instead of mischievous.
- Took a Level in Jerkass: They were reversed as pranksters again occasionally in Season 5.
- Trickster Twins: They can sometimes be a bit mischievous, but are good kids overall.
Xavier
- Nice Guy
- Only One Name
- Recurring Extra: Hardly makes speaking appearance in episodes and just appears in the background during the classroom scenes.
Emma
- A Day In The Lime Light: In Emma's Extra Snacks where it's revealed that she has diabetes.
- Nice Girl: A caring sort of kid.
- Only One Name: Like most characters on the show, her last name hasn't been revealed.
- Race Lift: Despite being Asian-Canadian in the books, she's Caucasian in the cartoon.
- Recurring Extra: Mostly appears in the background when Caillou is at playschool.
Andre
- The Big Guy: Due to his large size and the fact that he's three years older than Caillou.
- Gentle Giant: Bigger than Caillou, but very gentle in nature.
- Lovable Jock: He likes soccer and many other sports.
- Meaningful Name: He is giant and named after Andre the Giant, who was a real-life gentle giant.
- Nice Guy: One of Caillou's closest friends.
- Only One Name
Clementine's Mommy
- Black Bead Eyes
- Boyish Short Hair
- Good Parents: Towards Clementine and Billy.
- Nice Girl: She's a good mother and very kind to Caillou.
Billy
- Black Bead Eyes
- Cool Big Bro: Towards Clementine
- Lovable Jock: He plays baseball.
- Nice Guy: Billy is an affable brother.
- Only One Name
- Vague Age: His age hasn't been revealed on the show, but since he is in a marching band, he would be about 12 years old.
Julie
- Chuck Cunningham Syndrome: Julie disappears after Season 3 with no explanation. In Seasons 4 and 5, Grandma and Grandpa take over as Caillou and Rosie's babysitters.
- Friend to All Children: Given that she's a babysitter.
- Nice Girl: Julie is an incredibly sweet and friendly babysitter.
- Only One Name
Robbie
- Nice Guy: When he befriends Caillou.
- Only One Name
- The Speechless: Due to being deaf, he never speaks.
- Recurring Extra: He barely appears outside his debut episode.
Andy
- The Bus Came Back: Makes an unexpected return in the New Adventures episode "Caillou and the Fire Alarm".
- Defrosting Ice King: He acts kinda distant to Caillou at first before they became buddies.
- No Social Skills: He prefers to be alone.
- Only One Name: His surname has not been given.
- Sugar-and-Ice Personality: He is sometimes nice but sometimes not-so-nice.
