In most episodes, the only characters played by live actors are Stephanie, Sportacus, and Robbie Rotten. The rest of the characters are depicted as puppets, made by the Neal Scanlan Studio and Wit Puppets. The show was filmed and produced at 380 Studios, a purpose-built studio near Reykjavík equipped with high-end HDTV production facilities and one of the largest green screens in the world. The production floor area is 1,800 square meters. The budget for each episode was approximately ISK 70,000,000 (US$1 million), about five times the average cost for a children's television program at the time, making it "the most expensive children's show in the world" according to Scheving.