Adventure Time - Season 9 May 2026

: Pendleton Ward (remained as a writer and artist after stepping down as showrunner in earlier seasons) Supervising Directors : Cole Sanchez and Elizabeth Ito

The season followed the established creative pipeline at Cartoon Network Studios : Adventure Time - Season 9

: The writing continued to blend classic fantasy tropes—inspired by Dungeons & Dragons —with complex emotional themes. Key Creative Staff Showrunner : Adam Muto : Pendleton Ward (remained as a writer and

Season 9 leaned heavily into established lore and character maturity: showrunner Adam Muto

: Developed by head writer Kent Osborne , showrunner Adam Muto , Jack Pendarvis , and Julia Pott .