: These outlines were expanded into full storyboards by artists like Sam Alden , Polly Guo , and Steve Wolfhard . The storyboarders were responsible for writing the dialogue and physical action, making them the primary "writers" of the series.
The development of was characterized by a transition toward high-concept miniseries and a "storyboard-driven" production model led by showrunner Adam Muto . Production Workflow Adventure Time - Season 9
A major developmental pillar of Season 9 was the eight-part miniseries . : These outlines were expanded into full storyboards