10 Classic 2000s Cartoons That Are Ready for a Reboot Now

Demand for millennial and Gen Z nostalgia is at an all-time high in 2026, and several popular 2000s cartoons have already returned in some form, from Phineas and Ferb to The Fairly Oddparents. Whether fans love remakes or not, legacy franchises still hold a clear advantage over new properties.

This list highlights animated shows from the 2000s that deserve a reboot in 2026 based on popularity, nostalgia, unresolved story points, modern appreciation, and overall quality. Some series were cut short or ended on cliffhangers and could use proper conclusions.

Titles like Megas XLR, which became lost media and sits in a legal vault, Huntik: Secrets & Seekers, The Spectacular Spider-Man, Invader Zim, and Danny Phantom stand out for unfinished arcs or abrupt cancellations. In Danny Phantom’s case the creator has even teased the potential of a darker, adult-year sequel, and fans continue to want more.

2000s cartoons, millennial nostalgia, gen z, phineas, fairly oddparents, megas xlr, huntik, spider-man, invader zim, danny phantom