Eureeka's Castle's ending credits state the show comes from an original concept by Debby Reece and Judy Katschke. In 1988, development of the show began by staff members at Nickelodeon and animator Eli Noyes and his partner Kit Laybourne, whose wife Geraldine Laybourne was the Head of Programming for Nickelodeon.[2] “Jovial Bob Stine”, best known for his children's horror novels written under the pen name R.L. Stine, was hired as the Head Writer to develop the concept, characters and episode scripts.[3] The puppet design and construction for the characters were done at 3/Design Studio where the puppets were built by Jim Kroupa, John Orberg, Kip Rathke and Matt Stoddart.[4]

The show's fourth season, which ran concurrently with the third season, was designed for international distribution and featured clips from previous episodes. Production on Eureeka's Castle ended in 1992,[citation needed] as some of the show's crew began working on Gullah Gullah Island.