Created by Mr. Warburton, the series follows Sector V, a ragtag team of kid operatives battling adult tyranny with wild 2×4 tech. 

Premiering in 2002 after winning The Big Pick II fan vote, KND ran for six chaotic seasons, two TV movies, and even crossed over with The Grim Adventures of Billy & Mandy. It spawned games, comics, and an underground cult following that still wants a reboot.

Whether you remember Numbuh 1’s shaved head or Numbuh 5’s chill swag, this one’s pure cartoon espionage gold. Suit up, take the oath, and binge your way back to the Moon Base.

Rotten Tomatoes Average Popcornmeter Score: 91%	HBO Max

Step into the lab, because Dexter’s Laboratory is pure ‘90s cartoon genius. Created by animation legend Genndy Tartakovsky, this classic introduced us to Dexter, a boy-genius with a secret science lair and a serious Dee Dee problem.

From failed experiments to superhero monkey mayhem (Dial M for Monkey), every episode packed chaos and charm in under 10 minutes. Oh, and let’s not forget The Justice Friends roommates who fight evil and argue over TV remotes.

Premiering in 1996, Dexter’s Lab ran for four seasons, spawned a TV movie (Ego Trip), and helped launch the careers of Craig McCracken, Seth MacFarlane, and Butch Hartman.

With Emmy nods, Annie wins, and a cult fanbase that still quotes “omelette du fromage,” this series is a mad science masterpiece. Fire up HBO Max and prepare for nostalgic genius at its most chaotic.

Rotten Tomatoes Average Popcornmeter Score: 87%	HBO Max

If you’ve ever wished your imaginary friend could stick around forever, Foster’s Home for Imaginary Friends is your sweet, strange dream come true.

Created by Craig McCracken, this 2004 Cartoon Network gem centers on Mac and his chaotic blue buddy Bloo. When Mac’s mom says he’s too old for imaginary friends, Bloo finds a forever home at Foster’s—a mansion where abandoned imaginary friends await adoption.

From floating giants to one-eyed sass machines, the house is packed with wild personalities and even wilder stories. It’s heartfelt, hilarious, and full of mayhem.

Foster’s ran for six seasons, won 12 major awards including 7 Emmys, and never lost its weird little charm. Bonus: a preschool-friendly spinoff Foster’s Funtime for Imaginary Friends is on the way, with McCracken back in charge.

Rotten Tomatoes Average Popcornmeter Score: 96%	HBO Max

Chaos, sarcasm, and a scythe-wielding bestie, The Grim Adventures of Billy & Mandy brought the afterlife straight to after-school TV.

Born from Grim & Evil, this offbeat series spun out in 2003 and turned the Grim Reaper into a reluctant BFF to two wildly opposite kids, dimwitted Billy and deadpan Mandy. Their deal was to win a limbo match, trap Death forever. Casual.

With Grim’s supernatural powers on hand, the trio dives headfirst into underworld absurdities, from boogeyman brawls to Dracula drama. The show’s humor was twisted, smart, and totally unhinged in the best way.

It ran for six seasons, spawned TV movies (Billy & Mandy Save Christmas and Big Boogey Adventure), and scored two Emmys along the way. It even crossed over with Codename: Kids Next Door.

Rotten Tomatoes Average Popcornmeter Score: 86%	HBO Max

Nothing was ever regular about Regular Show. What starts with two slackers dodging work quickly spirals into bizarre, cosmic chaos and that’s just a typical Tuesday for Mordecai and Rigby.

Created by J.G. Quintel, this cult-favorite ran from 2010 to 2017, delivering eight seasons of surreal comedy, wild throwdowns, and 23-year-olds making every bad decision possible. Whether it’s battling evil geese, escaping alternate dimensions, or playing rock-paper-scissors with reality itself, the park crew never holds back.

The show snagged an Emmy, dropped a full-length movie in 2015, and now it’s officially making a comeback. As of June 2024, Warner Bros. has greenlit a brand-new Regular Show series with Quintel back at the helm.

Rotten Tomatoes Average Popcornmeter Score: 96%	HBO Max

Before The Powerpuff Girls took over Townsville, they were born in a CalArts dorm room as Whoopass Stew! Creator Craig McCracken’s trio of tiny superheroes exploded onto Cartoon Network in 1998 and animation was never the same.

Blossom, Bubbles, and Buttercup were pint-sized, color-coded chaos in pigtails, bringing down monsters and homework assignments with the same ferocity. It was cute meets ka-boom, with a whole lot of clever pop culture satire. The show ran six seasons, a movie, and got a reboot. It has been nominated for six Emmy Awards and nine Annie Awards.

Between beatdowns and bedtime, The Powerpuff Girls proved little girls could be heroes and hilariously brutal ones at that.

Rotten Tomatoes Average Popcornmeter Score: 83%	HBO Max

Courage the Cowardly Dog still haunts our cartoon-loving souls, and we kinda love it.

Premiering in 1999, this horror-comedy gem dropped a pink pup named Courage in the middle of Nowhere, Kansas. His mission was to save his sweet owner, Muriel, and her cranky husband, Eustace, from aliens, monsters, and full-on nightmares.

Created by John R. Dilworth, the show was packed with surreal imagery, eerie music, and that signature scream. From “The Chicken from Outer Space” pilot to twisted villains like Katz and Le Quack, Courage pushed the limits of kids’ TV with style.

It ran for four seasons and earned an Annie Award, plus some seriously loyal fans. Behind the screams and jump scares was always one loyal dog doing his best even if he was scared out of his fur.

Rotten Tomatoes Average Popcornmeter Score: 89%	HBO Max

Jawbreakers, scams, and chaotic cul-de-sac adventures, Ed, Edd n Eddy made childhood feel like one endless sugar rush.

Created by Danny Antonucci (on a dare, no less), this misfit trio of dorks dropped in 1999 and never looked back. Ed’s strong and dim, Double D’s a clean freak genius, and Eddy? A greasy little schemer chasing candy-fueled riches. Together, they hatched absurd plots that always blew up in their faces.

The show felt like a fever dream drawn in crayon, loud, loopy, and strangely brilliant. With a hand-drawn, retro style and slapstick energy ripped straight from ‘70s cartoons, Ed, Edd n Eddy stood out in the best way.

It ruled for a decade and left us with Big Picture Show, a finale that hit harder than a Kanker kiss.

Rotten Tomatoes Average Popcornmeter Score: 97%	HBO Max

A summer camp where a banana slug runs the show and dung beetles rule the dirt, Camp Lazlo is pure Cartoon Network chaos.

Launched in 2005, this Emmy-winning gem follows Lazlo, a hyper-happy spider monkey, as he bounces through bunk life at Camp Kidney with his misfit crew – Raj the nervous elephant and Clam the word-challenged rhino. Together, they clash with the eternally cranky Scoutmaster Lumpus and survive weird camp legends, girl scout feuds, and absurd outdoor challenges.

Created by Rocko’s Modern Life genius Joe Murray, Camp Lazlo delivers slapstick, heart, and a whole lot of weird woodland vibes. It’s the perfect pick for nostalgia-packed binge-watching that feels like summer break all over again.

Rotten Tomatoes Average Popcornmeter Score: 92%	HBO Max

If one wristwatch could flip you into a flame-throwing alien or a four-armed tank, you’d absolutely wear it, and that’s Ben 10 in a nutshell.

The sci-fi superhero saga kicked off in 2005, giving us 10-year-old Ben Tennyson, his grandpa Max, and cousin Gwen on a cross-country summer trip packed with alien throwdowns. Thanks to the Omnitrix, a cosmic gadget that fuses alien DNA into Ben’s arm, this kid becomes a galactic-level hero.

From Alien Force to Omniverse and even a 2016 reboot, Ben 10 grew bigger, bolder, and full-on interdimensional. Add in Emmy victory, crossover cameos, action-packed games, and movies, and you’ve got one of Cartoon Network’s most iconic franchises.

No matter the timeline, one thing’s for sure, Ben 10 always brings the action.

Rotten Tomatoes Average Popcornmeter Score: 92%	HBO Max

So, which is your favorite Cartoon Network classic? Drop your take below.