Simultaneously, several of the show's main characters originated from his animated shorts The Naïve Man from Lolliland and 2 in the AM PM.

The writers and storyboard artists for season 8 are Benton Connor, Madeline Queripel, Casey Crowe, Owen Dennis, Minty Lewis, Ryan Pequin, Sam Spina, Gideon Chase, Alex Cline, and newcomer Sean Glaze.

In March 2016, Kacie Hermanson was announced as the new main character designer for the season,[3] replacing long-time designer Ben Adams, who left the show after the sixth episode of the season to work on Billy Dilley's Super-Duper Subterranean Summer for Disney XD.

A former writer and storyboard artist Andres Salaff briefly returned to work on the final episode.

After erecting a memorial statue of Pops, a montage shows what happened to the park crew after their adventure in space: Mordecai quits his job at the park, becomes a painter, and meets a woman (a female bat); Rigby marries and has children with Eileen; Muscle Man and Starla move into a nicer trailer and have more children; Benson reunites with Pam the scientist, the two raise four cats and a pig, and Benson becomes park owner after Mr. Maellard's death; High Five Ghost reunites with his human girlfriend, Celia, and the two become popular party DJs in Prague; and Skips is still single and working at the park, only now, he wears shorts instead of jeans.

Twenty-five years later, the entire crew return and Mordecai and Rigby reflect on Pops' sacrifice and how immature they used to be before deciding to play some old arcade games.