The 2000s were a golden age for animation, producing shows that didn't just entertain kids but also pushed the boundaries of storytelling. From epic fantasy adventures to clever comedies, these cartoons have aged remarkably well and remain just as enjoyable today. Whether you're feeling nostalgic or discovering them for the first time, here are 10 2000s cartoons that are absolutely worth revisiting.
'The Adventures of Jimmy Neutron, Boy Genius' (2002–2006)
While it might not be the first show that comes to mind, The Adventures of Jimmy Neutron, Boy Genius is a cornerstone of 2000s kids' TV. The series follows a young inventor whose genius-level intellect leads him into all sorts of wild, science-based adventures. The humor is surprisingly sharp, with jokes that land for both kids and adults. Sure, the early CGI might look a bit dated now, but the clever writing and innovative storytelling more than make up for it. Created by John A. Davis, Steve Oedekerk, and Keith Alcorn, this show deserves a lot more love than it gets.
'Star Wars: The Clone Wars' (2008–2020)
When Star Wars: The Clone Wars debuted in 2008, it didn't just expand the galaxy far, far away—it completely recontextualized the prequel films. Set between Attack of the Clones and Revenge of the Sith, this anthology series, overseen by supervising director Dave Filoni, brought depth and nuance to characters who felt flat in the movies. With gripping plots, meaningful themes, and some of the best Star Wars stories ever told, it's no wonder this show has become a fan favorite. If you haven't watched it yet, you're missing out on essential Star Wars lore.
'Kim Possible' (2002–2007)
“Call me, beep me, if you wanna reach me”—that iconic theme song is just the beginning. Kim Possible introduced us to one of the best female protagonists in animation. Kim is a high school student by day and a super spy by night, balancing cheerleading tryouts with saving the world. She's confident, badass, and kind, but also flawed and relatable. The show broke the mold for female characters at the time, and its supporting cast—from her bumbling sidekick Ron Stoppable to the villainous Dr. Drakken—is hilarious. The adventures are exciting from start to finish, making this a must-watch.
'Justice League Unlimited' (2004–2006)
After the success of the original Justice League animated series, Warner Bros. expanded the universe with Justice League Unlimited. This sequel brought in a massive roster of DC heroes beyond the core team, allowing for richer, more varied stories. The writing, courtesy of the legendary DCAU team, is top-notch, and the series often feels even stronger than its predecessor. With great themes and unique storytelling, it's a superhero show that still stands tall.
'Codename: Kids Next Door' (2002–2008)
Codename: Kids Next Door is a wild, imaginative ride that pits a group of kids against adult tyranny. Operating from a secret treehouse, Sector V uses high-tech gadgets and teamwork to fight for kid rights everywhere. The show's creativity is off the charts, with each mission feeling like a mini-adventure. It's funny, clever, and surprisingly heartfelt—a perfect example of 2000s cartoon ingenuity.
'Avatar: The Last Airbender' (2005–2008)
No list of 2000s cartoons is complete without Avatar: The Last Airbender. This epic series follows Aang, the last Airbender, on a quest to master all four elements and bring peace to a war-torn world. With its rich world-building, complex characters, and mature themes, it's widely considered one of the greatest animated shows of all time. If you're looking for more stories like this, check out our article on 7 Animated Series That Tried to Capture Avatar: The Last Airbender's Magic.
'Teen Titans' (2003–2006)
Teen Titans took the classic DC team and gave them a fresh, anime-inspired makeover. The show balanced action, humor, and emotional depth perfectly, with each Titan—Robin, Starfire, Cyborg, Raven, and Beast Boy—getting their time to shine. The series tackled serious issues like identity and loss while still being incredibly fun. It's a cult classic that holds up beautifully.
'Ben 10' (2005–2008)
Ben 10 was a phenomenon in the 2000s, and for good reason. The show follows Ben Tennyson, a boy who discovers a mysterious watch that lets him transform into ten different aliens. Each alien has unique powers, leading to endless creative battles and adventures. The series spawned multiple sequels and remains a beloved franchise. It's a blast to revisit, especially for fans of action-packed sci-fi.
'The Grim Adventures of Billy & Mandy' (2001–2007)
This dark comedy from Cartoon Network is unlike anything else. After winning a limbo contest against the Grim Reaper, the selfish Billy and the cynical Mandy force Grim to be their best friend forever. The show's twisted humor and bizarre characters make it a standout. It's weird, it's hilarious, and it's absolutely worth rewatching.
'Foster's Home for Imaginary Friends' (2004–2009)
Created by Craig McCracken, Foster's Home for Imaginary Friends is a heartwarming and imaginative series about a boy who leaves his imaginary friend at a home for abandoned imaginary friends. The show is bursting with creativity, featuring a colorful cast of characters and stories that explore friendship and belonging. It's a gentle, funny, and deeply charming show that still feels fresh.
These 10 cartoons represent the best of what the 2000s had to offer. Whether you're in the mood for epic fantasy, superhero action, or just a good laugh, there's something here for everyone. So grab some snacks, fire up your streaming service, and get ready for a trip down memory lane. And if you're a fan of Avatar: The Last Airbender, don't miss our piece on If You Love 'Avatar: The Last Airbender,' This Jade City Fantasy Epic Is a Must-Read.
