Finn the Human

Finn the Human’s Story Role in Adventure Time: Side Quests
This iteration of Finn sits squarely in the spirit of the show’s earliest seasons, before the weight of destiny and complex mythology settled onto his shoulders. Young, scrappy, and relentlessly game for whatever Ooo throws at him, he races through self-contained adventures alongside Jake, helping people, fighting monsters, and generally treating every bizarre new situation as the best thing that’s ever happened to him. Side Quests is deliberately designed as the perfect entry point for newcomers, which means this Finn carries the full load of introducing a new generation to the world, all while reminding longtime viewers why they fell in love with the character in the first place. The series leans into that joyful, anything-can-happen energy that made the original run legendary.
Who Voices Finn the Human in Adventure Time: Side Quests?
Sasha Knight takes on the role of Finn the Human, stepping in for Jeremy Shada who voiced the character across the original ten-season run. With only a handful of credits to their name so far, Knight’s casting as a younger Finn marks a significant breakout opportunity. The rest of the ensemble is stacked with returning voices: John DiMaggio reprises Jake the Dog, a role he’s held alongside acclaimed work as Bender in Futurama; Tom Kenny returns as Ice King, the actor also beloved as the voice of SpongeBob SquarePants; Hynden Walch is back as Princess Bubblegum; Olivia Olson returns as Marceline; and Niki Yang voices BMO while also serving as a director on the series.