'Adventure Time: Fionna and Cake': Release Date, Plot, Trailer and Everything We Know So Far (2024)

Come on, tell your friends, we’re finally getting that Adventure Time: Fionna and Cake spin-off series! While the series, starring gender-swapped versions of Finn and Jake from Adventure Time, was first announced back in 2021, it’s been a while since we’ve heard anything about it. Well now we finally have a release window, and it turns out that lucky viewers at San Diego Comic-Con will even get to see the world premiere of the first episode! While Fionna and Cake may have started as just Rule 63 art of Adventure Time’s main characters Finn and Jake, they’ve evolved into much more, becoming some of Adventure Time’s most beloved characters.

Editor's Note: This piece was updated on August 18.

Adventure Time

TV-PG

Animation

Adventure

See Also

Everything to Know Before 'Adventure Time: Fionna and Cake'

Comedy

Release Date

April 5, 2010

Cast

Jeremy Shada , John Di Maggio , Tom Kenny , Hynden Walch

Main Genre

Animation

Seasons

10

When Is Adventure Time: Fionna and Cake Coming Out?

Adventure Time: Fionna and Cake premieres on Thursday, August 31, 2023. The series premiered its first episode at San Diego Comic-Con in July 2023.

Related:The 10 Best Episodes of 'Adventure Time,' Ranked By IMDb

Where Can You Watch Adventure Time: Fionna and Cake?

Assuming you can’t get to San Diego Comic-Con, the place to see Adventure Time: Fionna and Cake will be on Max, Warner Bros Discovery's streaming service, when the Adventure Time spin-off debuts there this fall. Fionna and Cake is currently set to be a limited series consisting of ten half-hour episodes.

Is There a Trailer for Adventure Time: Fionna and Cake?

A sizzle reel for the spin-off was revealed at San Diego Comic-Con on July 20, 2023. The minute-long spot teases that the highly anticipated series will take the Adventure Time franchise to new places not just storywise but also with varying animation styles and designs.

A full trailer was released by Max on August 17, 2023, further highlighting the series' distinct animation style. The series also revealed that Finn and Jake will be returning for the new series, with Finn looking quite older than when we last saw him.

Who Stars in Adventure Time: Fionna and Cake?

Madeleine Martin voices Fionna in Adventure Time: Fionna and Cake. Martin was also the voice of Fionna in the Fionna and Cake episodes of Adventure Time. She previously voiced JoJo in the series JoJo’s Circus and played Madeleine in The Marvelous Ms. Maisel.

Cake will also be played by her voice actor from Adventure Time- Roz Ryan. Ryan previously voiced Thalia, one of the Muses in Disney’s Hercules and Hercules the Animated Series. She was also the voice of Bubbie the Whale in The Marvelous Misadventures of Flapjack, voiced Cyborg’s grandmother in Teen Titans Go!, and played Grandma Gayle King in the Zendaya starring series K.C. Undercover.

Tom Kenny will also reprise his role from Adventure Time and voice Simon Petrikov. (Petrikov spent most of Adventure Time as the Ice King due to his crown which gave him ice powers but also drove him mad.) Kenny is best known as the iconic voice of SpongeBob SquarePants, but that’s far from his only notable work. He also voiced Dog in the series CatDog, voiced Scoutmaster Lumpus in Camp Lazlo, and voiced Squanchy in Rick and Morty.

The rest of the voice cast includes Donald Glover reprising his role as Marshall Lee, as well as Andrew Rannells (Big Mouth), Kayleigh McKee (Jujutsu Kaisen 0), and Sean Rohani (Chip 'n Dale: Rescue Rangers).

What Is Adventure Time: Fionna and Cake About?

From their earliest appearances, first simply as art, and then as characters in the Ice King’s fanfiction, Fionna and Cake have had a devoted following. It’s hard not to love Fionna, the human, and Cake, the cat. In the Adventure Time: Fionna and Cake limited series they’ll be teaming up with Simon Petrikov, the character who spent much of Adventure Time known as the Ice King, to travel the multiverse and fight against a new villain. We’ve also learned that Fionna and Cake will feature a somewhat older Fionna and be targeted more toward a young adult audience.

The official synopsis via MAX reads:

Based on characters from the beloved “Adventure Time” franchise, this brand-new 10-episode series set in the land of Ooo follows the alternate universe versions of Finn & Jake on a multiverse-hopping journey towards self-discovery. When Fionna and her sidekick Cake find themselves in the crosshairs of a powerful new foe, they have no choice but to seek the help of former Ice King Simon Petrikov. With appearances from Marshall Lee, Marceline the Vampire Queen, Princess Bubblegum, and Finn the Human, “Adventure Time: Fionna & Cake” transports fans of the classic series to worlds both familiar and alien.

Related:10 Best Villains in 'Adventure Time' Ranked

Who Is Making Adventure Time: Fionna and Cake?

The showrunner for Adventure Time: Fionna and Cake is Adam Muto. Muto was also the showrunner for several seasons of Adventure Time and also worked on the Adventure Time: Distant Lands specials. In addition to working on Adventure Time, Muto also worked on storyboards for Steven Universe and Summer Camp Island.

The original concept art for Fionna and Cake was drawn by Adventure Time artist Natasha Allegri, who also went on to draw the Fionna and Cake comic. Allegri is also the creator of the adorable and surprisingly deep series Bee and PuppyCat.

While Pendleton Ward was the original creator of Adventure Time, he stepped away from the series part way through its initial run and has more recently worked on projects including Midnight Gospel and Bee and Puppycat.

What Are the Other Adventure Time Projects?

Adventure Time (2010-2018)- The beloved Cartoon Network series Adventure Time introduced audiences to the land of Ooo and the colorful denizens of the Candy Kingdom. Over the show’s ten seasons Jake the Dog (voiced by John DiMaggio) and Finn the Human (Jeremy Shada) don’t just slay evil things, collect loads of dosh, and rescue princesses, they also grow and mature as individuals. The charming series appealed to audiences of all ages and for all the jokes and absurdity was also a surprisingly touching coming-of-age story.

Watch on MAX

Adventure Time: Distant Lands (2020-2021) - Consisting of four specials, each released a few months apart, Adventure Time: Distant Lands let us see BMO’s futuristic adventures, Finn and Jake reuniting in the afterlife, and of course, PB and Marceline exploring their future together.

Watch on MAX