Bill Hader is learning how to meow.

Warner Bros. announced Monday it will release its animated event pic The Cat in the Hat — based on the beloved Dr. Seuss tale — in theaters on March 6, 2026. It also revealed the movie’s voice cast for the first time. Hader, who will play The Cat, will star opposite Quinta Brunson (Abbott Elementary), Bowen Yang (SNL), Xochitl Gomez (Doctor Strange in the Multiverse of Madness), Matt Berry (What We Do in The Shadows) and Paula Pell (Girls5eva).

The film is being written and directed by Alessandro Carloni and Erica Rivinoja, with Daniela Mazzucato and Jared Stern producing. Susan Brandt, president-CEO of Dr. Seuss Enterprises, and Hader will executive produce. DNEG Animation will be the animation studio partner.

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Warner Bros. Pictures Animation and Dr. Seuss Enterprises are backing the feature, which centers on the fanciful feline as he tries to cheer up a pair of siblings struggling to adapt to their new town.

“We are overjoyed to partner with our friends at Dr. Seuss to take audiences of all ages on an adventure into the beloved world of The Cat in the Hat. With this incredible voice cast led by Bill Hader as the fun-loving, agent of chaos himself and our filmmakers Alessandro and Erica at the helm, we look forward to sharing this Seussian cinematic spectacle with audiences everywhere in 2026,” said Warner Bros. Animation president Bill Damaschke, who has been tasked with overhauling the division.

Brandt added, “We are excited to see such an exceptional group of talent join the effort to bring this iconic property to the screen as an animated feature.

Dr. Seuss’ book The Cat in the Hat was published in 1957 on its way to becoming a perennial classic for generations of kids. This will mark the character’s animated big screen debut; Mike Myers starred in a live-action adaptation in 2003.

The movie is the first in a slate of animated projects that Warner Animation and Dr. Seuss Enterprises are developing together.