Jim Kroupa

Jim Kroupa, sometimes credited as James J. Kroupa, is a puppeteer and puppet builder who has worked on several Muppet projects. He is a co-owner of 3/Design Studio, which has built puppets for shows such as Eureeka’s Castle (where he also played Batly), Between the Lions, The Great Space Coaster, Wimzie's House, and It's A Big, Big World. Other puppeteer credits include Gullah Gullah Island (Chansome the pelican) and Lomax, the Hound of Music (Clark).

On Jack's Big Music Show, though his company didn't build any of the puppets, he was the puppeteer for characters such as Mel for season 2, a member of the Schwartzman Quartet, and Alfred the Squirrel, as well as the person responsible for the designs of Sleezo, Momma Bongo Bird, Spunky and the Big Bad Wolf. Kroupa has publicly stated that the second season was a fun experience for him, something most of the first season was not.