Created by Craig McCracken, it follows the adventures of the optimistic Wander, who travels across the galaxy to help the inhabitants of various planets live freely despite the intentions of Lord Hater to rule the universe.

[3] The series follows Wander, a nomadic, helpful, and overly-optimistic intergalactic traveler and his best friend and steed, Sylvia the Zbornak, as they travel from planet to planet helping people to have fun, play, and live free, despite the continuing encroachment of Lord Hater, one of the most powerful villains in the galaxy, and his army of Watchdogs.

Craig McCracken, creator of Wander Over Yonder, previously helmed the Cartoon Network series The Powerpuff Girls and Foster's Home for Imaginary Friends.

[8] The eponymous character made his debut on sketchbooks, clothes, and patches that McCracken sold at conventions, as well as in a never-finished graphic novel.

[14] Shortly after, Disney Television Animation executive Eric Coleman announced that the series was renewed for a second season,[15] with comic book writer ND Stevenson joining the writing team.