Adventure Time

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Lore & Background

Set during the early chronological timeline of the Adventure Time universe, the series focuses on the childhood of Finn the Human and chronicles the early development of his brotherly bond with his magical dog, Jake the Dog. Shifting away from the heavy, multi-season serialization found in later franchise projects like Adventure Time: Fionna and Cake, Side Quests is constructed around lighter, self-contained, and standalone episodic stories akin to the early seasons of the original show. The narrative follows the duo completing odd jobs, interacting with cloud people, exploring the Land of Ooo, and engaging in playful confrontations with classic villains like the Ice King.

Reader's Guide

The series features the return of the vast majority of the original program's principal voice actors reprising their legacy roles, including John DiMaggio as Jake the Dog, Tom Kenny as Ice King, Hynden Walch as Princess Bubblegum, Olivia Olson as Marceline, and Niki Yang as BMO. Because the series focuses explicitly on Finn's early childhood, actor Sasha Knight was cast to voice the young Finn the Human, succeeding Jeremy Shada who voiced the adolescent and adult versions of the character across previous media entries. The musical score for Side Quests is composed by Matthew Janszen, who previously collaborated with showrunner Nate Cash on the Warner Bros. animated series Tiny Toons Looniversity. The series' new opening theme song consists of a reimagined rendition of the theme song from the original series, performed by the American anti-folk band The Moldy Peaches. The project was originally greenlit and publicly announced by Warner Bros. Animation at the 2024 Annecy International Animation Film Festival as part of an expansion of the Adventure Time intellectual property under Cartoon Network Studios. Longtime original series director and storyboard artist Nate Cash was attached to develop the concept as showrunner and executive producer. At the 2025 iteration of the festival, a work-in-progress draft of the series' introductory title sequence was screened for attendees. In May 2026, Cartoon Network officially unveiled the series' production staff and core voice cast. Victor Courtright and Niki Yang were confirmed as the primary animation directors, with Nick Cross serving as art director and Darrick Bachman managing the script workflow as story editor. In July 2026, a second season was announced, also consisting of 20 episodes. Adventure Time: Side Quests released on June 29, 2026, on Disney+ and Hulu in the United States, and will release internationally on Cartoon Network and HBO Max on October 5, 2026.

Did You Know?

• The series was developed by Nate Cash, a longtime original series director and storyboard artist for Adventure Time.
• Sasha Knight voices young Finn the Human, taking over from Jeremy Shada who voiced the character in previous media.
• The opening theme song is a reimagined rendition of the original series theme, performed by the American anti-folk band The Moldy Peaches.
• The series was first announced at the 2024 Annecy International Animation Film Festival by Warner Bros. Animation.
• A second season of 20 episodes was announced in July 2026, set to release in late 2026.

Premise & Narrative Approach

Adventure Time: Side Quests repositions the franchise's narrative lens at the very beginning of its shared timeline, centering on Finn the Human as a young child rather than the adolescent or adult version audiences grew to know. The show's central emotional throughline is the gradual forging of the brotherly connection between Finn and his magical canine companion, Jake the Dog. Structurally, the series deliberately departs from the dense, multi-season serialization that defined later entries such as Adventure Time: Fionna and Cake. Instead, each installment is designed as a lighter, self-contained story in the spirit of the original show's earliest seasons. In practice, this means Finn and Jake are shown taking on small odd jobs, chatting with cloud people, wandering through the Land of Ooo, and getting into lighthearted run-ins with familiar antagonists like the Ice King. The result is a tone that prioritizes playful discovery over long-arc plotting, inviting both longtime fans and newcomers to experience the world as the characters first encountered it.

Casting & Voice Performance

One of the most immediately recognizable aspects of Side Quests is the return of the original series' core voice ensemble. John DiMaggio reprises his long-running role as Jake the Dog, while Tom Kenny, Hynden Walch, Olivia Olson, and Niki Yang all step back into their familiar characters as Ice King, Princess Bubblegum, Marceline, and BMO respectively. The single most significant casting decision, however, is the introduction of Sasha Knight as the child version of Finn the Human. Knight takes over the role from Jeremy Shada, who had voiced the character in his adolescent and adult iterations across the original run and subsequent media. Because Side Quests is explicitly set during Finn's early childhood, a younger vocal quality was essential to the show's premise. The decision to bring back the vast majority of the legacy cast while swapping out only the one character whose age had fundamentally changed gives the series a sense of continuity that feels both nostalgic and fresh, anchoring the new episodic stories in the same sonic world fans have known for over a decade.

Development & Production Journey

Side Quests began its life as a greenlit project announced by Warner Bros. Animation at the 2024 Annecy International Animation Film Festival, positioned as part of a broader expansion of the Adventure Time intellectual property under the Cartoon Network Studios banner. The studio tapped Nate Cash, a longtime director and storyboard artist on the original series, to helm the project as both showrunner and executive producer. The following year at the same festival, attendees were treated to a screening of a work-in-progress draft of the show's opening title sequence, offering an early glimpse of the series' visual and tonal direction. By May 2026, Cartoon Network had publicly unveiled the full production team and core voice cast. Victor Courtright and Niki Yang were confirmed as the primary animation directors, Nick Cross took the art director role, and Darrick Bachman was brought in to manage the script workflow as story editor. Just two months later, in July 2026, a second season of twenty episodes was officially announced, signaling that the studio had already secured a multi-season commitment for the soft reboot.

Release & Musical Identity

The musical identity of Side Quests represents a thoughtful bridge between the franchise's past and its new chapter. The score is composed by Matthew Janszen, who had previously worked alongside showrunner Nate Cash on the Warner Bros. animated series Tiny Toons Looniversity, suggesting a creative partnership that carried over into this project. Perhaps most notably, the series' opening theme is not an entirely new composition but rather a reimagined rendition of the beloved original Adventure Time theme, performed by the American anti-folk band The Moldy Peaches. This choice grounds the soft reboot in the sonic memory of the original while giving it a fresh, slightly off-kilter interpretation. On the distribution front, the first season premiered in the United States on Disney+ and Hulu on June 29, 2026, with an international rollout on Cartoon Network and HBO Max following on October 5, 2026. A second season, also comprising twenty episodes, is slated for a late 2026 release, ensuring that the series maintains a steady cadence of new content for its audience.

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