Episode writer Lender proposed to have Count Orlok of the 1922 silent film Nosferatu appear as a gag at the end of the episode.[4] Series creator Stephen Hillenburg accepted Lender's proposal and allowed him to do it.[4] Lender said, "Steve gave you the opportunities to do things that would really be memorable, if you could sell him on it."[4] Lender then searched for books with scannable pictures of Count Orlok.[4] However, the image of Count Orlok used in the episode was taken from the Internet.[4] He said, "I searched what little there was of the Web back then."[4] Nick Jennings Photoshopped the smile on Count Orlok to make sure it matched Lender's board drawing.[4] Lender said, "It was my baby, and I held its hand until we shipped it overseas to Rough Draft Studios in South Korea."[4] Before his idea of Count Orlok, Lender thought of "Floorboard Harry",[4] a deleted gag that concludes the broadcast episode, in which he initially flickers the lights.[4]