The original unaired pilot was named "Kids' Show" and was produced for the USA Network.
The intro to each episode includes a childhood photo of show creators, Vernon Chatman and John Lee.
On season 1 episode 3 when Chauncey and hims charity parts with the rabbit it is censored on tv and paramount plus and when him says "you have mouth like velvet" is muted.
The series also had some notable animators and cartoonists involved. One of them was Mark Marek, known for his work on Nickelodeon's KaBlam! (1996) and Cartoon Network's Mad (2010) series. He created the sketch "Yuck Yuck Goose, and his sidekick his Butt".
Another notable cartoonist who worked on Wonder Showzen was Ben Jones, who created the Cartoon Network series The Problem Solverz (2010), in which he initially pitched to Adult Swim (in collaboration with PFFR) back in 2008 as "Neon Knome". He also created the FXX series Stone Quackers (2014) and the Netflix series Saturday Morning All Star Hits! (2021), which was partially inspired by Wonder Showzen as a sketch comedy show.
Another notable cartoonist who worked on Wonder Showzen was Ben Jones, who created the Cartoon Network series The Problem Solverz (2010), in which he initially pitched to Adult Swim (in collaboration with PFFR) back in 2008 as "Neon Knome". He also created the FXX series Stone Quackers (2014) and the Netflix series Saturday Morning All Star Hits! (2021), which was partially inspired by Wonder Showzen as a sketch comedy show.
Eric André also praised Wonder Showzen, commenting "Wonder Showzen' is one of my favorite shows of all time. When I first saw it, I thought it was so funny and new and original and edgy and insane and subversive. I didn't know comedy could do that. It redefined what I thought you could do with a TV show."
He would later cite Wonder Showzen as an inspiration behind the writing style of The Eric Andre Show (2012).
He would later cite Wonder Showzen as an inspiration behind the writing style of The Eric Andre Show (2012).