200GB of Cartoon Network's classics just leaked, and fans think that's what saved them

200GB of Cartoon Network's classics just leaked, and fans think that's what saved them
Image credit: Legion Media

Someone dumped decades of Cartoon Network production files online days after the studio changed owners. The legal word for it is infringement; the word fans keep using is preservation.

Around October 9 and 10, more than 200GB of internal Cartoon Network production material began circulating online — storyboards, character rigs, model sheets, series bibles, fonts, background art, and, for some shows, the actual Flash source files episodes were animated in. Fans quickly dubbed it the "Classic CN Gigaleak," and Mashable independently accessed the Google Drive folder at its center and confirmed its contents. More than 30 series are reportedly affected, spanning generations: The Powerpuff Girls, Dexter's Laboratory, Foster's Home for Imaginary Friends, The Grim Adventures of Billy & Mandy, Teen Titans, Regular Show, Adventure Time, The Amazing World of Gumball — which reportedly leaked with complete animation source files for seasons 1 and 2 — plus Robot Chicken, The Looney Tunes Show, Duck Dodgers, and even Powerpuff Girls Z, the anime spinoff that never aired in the US.

The timing is the part nobody can stop pointing at. The files surfaced days after Skydance completed its roughly $110 billion acquisition of Warner Bros. Discovery on October 6, putting Cartoon Network under its fourth corporate regime in a decade. The leak appears to trace back to an anonymous X account, links spread through a Google Doc, copyright takedowns have already started, and no culprit has been identified. Some users have speculated about a connection to Paramount-side security, and there is no evidence for that.

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Why "saved" is the word fans reached for

An unauthorized dump of corporate files is not preservation in any legal sense. But the fan reaction has been closer to relief than outrage, and that reaction has a very specific history behind it:

  • 2022: Warner Bros. Discovery pulls dozens of titles from HBO Max in a cost-cutting purge, deleting shows like Infinity Train and OK K.O.! from their own platform.
  • 2023: The studio shelves the finished Coyote vs. Acme for a tax write-off. It takes a fan and filmmaker revolt, and more than a year, before the movie is sold off to Ketchup Entertainment instead of erased.
  • 2024: Cartoon Network's website is shut down and redirected to a streaming page, taking years of games and archive material with it.
  • 2026: The company changes hands again, with a new owner whose cost discipline is the entire thesis of the merger.

Put that record next to a folder of raw production files for thirty shows, and you can see why working animators greeted the leak like a rescue operation. One animation artist's reaction made the rounds in exactly that spirit:

Wile E. Coyote in Coyote vs. Acme (2026). Warner Bros. Discovery shelved the finished movie for a tax write-off before it was sold to Ketchup Entertainment
Wile E. Coyote in Coyote vs. Acme (2026). Warner Bros. Discovery shelved the finished movie for a tax write-off before it was sold to Ketchup Entertainment. Image credit: Legion Media

"Bless it and let the fans cook."

— an animation artist on X, on the leaked source files

Artists also pointed out the educational value: full .fla episode files are the kind of material animation students never get to study, because studios almost never release it.

Fans aren't celebrating the theft. They're betting the vault was the bigger threat.

The pattern around it

This is the third major animation leak in two years, after a 2024 Disney breach that exposed material from The Owl House and Gravity Falls, and the April 2026 leak of Paramount's Avatar: The Last Airbender animated movie months before its premiere. The files are out, the takedowns are chasing them, and if history is a guide, both of those things will still be true a year from now. What the new owners at Skydance plan to do with the Cartoon Network library itself — the question underneath all the fan anxiety — is the one thing this week didn't answer.

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