Blue Cat Cartoon Characters: 8 Famous Picks Ranked

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cartoon with blue cat

The most famous blue cat in animation is probably Tom from Tom and Jerry. But once I started digging, I realized blue cat cartoon characters are everywhere: classic slapstick, kids TV, anime, and even brand new streaming shows.

There is something about a blue cartoon cat that instantly feels friendly.

Maybe blue just reads as safe and funny.

Maybe I only associate blue cats with cereal and Saturday morning TV.

Either way, here are eight of the most famous and popular blue cat cartoon characters, ranked from the ones you might have forgotten up to the one everybody knows.

How I ranked these blue cat cartoon characters

  • Icon factor: you can recognize them from a single image.
  • Real popularity: they show up in memes, merch, reboots, and remember-this threads.
  • Range: I mixed classic cartoons, kids shows, and a couple of blue anime cats.

The Most Famous Blue Cat Cartoon Characters, Ranked

Blanket (Cats and Peachtopia)

Blanket, the bluish-grey house cat from the animated film Cats and Peachtopia

From: Cats and Peachtopia (2018)

Vibe: quiet, cautious, secretly brave

My take: I like this one because it is a dad story, not just comedy chaos.

Blanket is a bluish-grey house cat who is happiest doing nothing on a windowsill.

Then his curious son Cape runs off to find a legendary cat paradise, and Blanket has to face the outside world he has spent his whole life avoiding. Cats and Peachtopia is a 2018 Chinese film, and it goes to some surprisingly emotional places for a movie about cats. If you want a blue cartoon cat with real feelings, this is the pick.

Cat (Peg + Cat)

Cat from Peg Plus Cat, a calm blue cartoon cat in the PBS Kids math series

From: Peg + Cat

Best for: blue cat cartoons for kids (educational and gentle)

Hook: math adventures that are somehow fun

My take: one of the few learning cartoons I can watch without feeling talked down to.

Cat from Peg + Cat is an indigo-blue sidekick who mostly keeps Peg calm when she starts to panic.

The PBS Kids show launched in 2013 and turned counting and basic math into low-key adventures. If you are searching specifically for blue cat cartoons for kids, this is one of the cleanest, most parent-approved picks on the list.

Pete the Cat (Pete the Cat)

Pete the Cat, a groovy blue cartoon cat from the childrens books and TV series

Best for: blue cartoon cats for kids (wholesome, musical, easy watching)

Message: stay cool, stay kind, keep going

My take: Pete is the blue cat you put on when you want your brain to relax.

Pete started as a self-published picture book in 2008 and grew into a massive kids franchise, then an animated series on Amazon.

The vibe never changes: friendly, optimistic, and everything is going to be okay. If you are building a wider watch list, my bigger hub is here: cartoons and anime to watch.

Happy (Fairy Tail)

Happy from Fairy Tail, a blue anime cat with wings who helps Natsu and the guild

From: Fairy Tail

Signature: a blue cat with wings (an Exceed)

Role: comic relief and loyal sidekick

My take: Happy is proof a cute mascot can still be essential to the team.

Happy is one of the most famous blue anime cats out there, recognizable even to people who have never watched Fairy Tail.

He showed up with the manga in 2006 as Natsu’s partner. His job is to lighten the mood, and then he saves someone at the exact right moment.

Oggy (Oggy and the Cockroaches)

Oggy, the blue cartoon cat from Oggy and the Cockroaches, battling three roaches

From: Oggy and the Cockroaches

Core gag: blue cat versus three roaches, forever losing

Comedy style: fast, physical, very little dialogue

My take: Oggy is pure frustration comedy, and somehow that makes him lovable.

Oggy is the European cousin of classic slapstick. The French series launched in 1998 and leans on physical comedy and endless escalation, so it plays in any language. If you like old-school no-words-needed cartoon humor, Oggy and the Cockroaches has a deep catalog to work through.

Gumball Watterson (The Amazing World of Gumball)

Gumball Watterson, the blue cartoon cat from The Amazing World of Gumball in Elmore

Style: mixed media, surreal comedy, constant visual gags

Theme: school chaos plus family nonsense

My take: Gumball is what happens when a blue cat cartoon decides to break every rule on purpose.

Gumball is the modern blue cat icon: sarcastic, emotional, and always one bad decision away from disaster.

The Cartoon Network show ran from 2011 to 2019 and helped bring internet-humor pacing to kids TV, with fast cuts, random gags, and absurd escalation.

Fresh update: the series came back in 2025 as The Wonderfully Weird World of Gumball on Hulu, and it was renewed through a fourth season before season two even aired. That makes Gumball one of the rare blue cat cartoon characters to land a full streaming-era comeback.

Doraemon (Doraemon)

Doraemon the blue robot cat from Japan, one of the most famous blue cat cartoon characters

From: Doraemon

Vibe: a blue robot cat with an entire sci-fi toolbox

Signature: a gadget for every childhood problem

My take: Doraemon is the comfort-show version of a superhero. Helpful, gentle, always trying to do the right thing.

Doraemon is one of the biggest blue cat cartoons on the planet, especially across Asia.

The manga started in 1969 and the formula still works today: a kid has a problem, Doraemon pulls a gadget from his pocket, chaos happens, lesson learned. Fun detail, he was not always blue. The story goes that he was originally yellow and turned blue after a robot mouse chewed off his ears.

Tom (Tom and Jerry)

Tom from Tom and Jerry, the iconic blue-grey cartoon cat known for chasing Jerry

From: Tom and Jerry

Why he is iconic: probably the most famous blue-grey cat in animation history

First era: classic theatrical shorts (the originals still hold up)

My take: Tom is the rare character who loses constantly and still feels like the main character.

Tom is the blueprint for slapstick cartoon cats: determined, dramatic, and always sure the next plan will finally work. He first appeared back in 1940 and never really left.

If you have ever wondered whether he and Jerry are secretly friends or lifelong enemies, I went deep on it here: are Tom and Jerry best friends?

My Quick Picks: Where to Start

If you only have time for a few, start with these blue cat cartoon characters:

  • Tom: the classic. The blueprint.
  • Doraemon: global icon status.
  • Gumball: modern meme-era blue cat energy.
  • Oggy: slapstick chaos that never ends.

Blue Cat Cartoon Characters at a Glance

Here is every pick in one place, ranked from number one down, so you can scan these famous blue cat cartoon characters by show, type, and the year they first appeared.

# Character Show or Film Type First Appeared
1 Tom Tom and Jerry TV / Film 1940
2 Doraemon Doraemon Manga / Anime 1969
3 Gumball Watterson The Amazing World of Gumball TV 2011
4 Oggy Oggy and the Cockroaches TV 1998
5 Happy Fairy Tail Manga / Anime 2006
6 Pete the Cat Pete the Cat Books / TV 2008
7 Cat Peg + Cat TV 2013
8 Blanket Cats and Peachtopia Film 2018

Blue is one of those colors that just works on a cartoon cat.

Friendly, familiar, and easy to remember.

Those are my favorite blue cat cartoon characters, but if I left one off, tell me and I will add it to the next update.