Great Uncle Fishknife scares Farkas Faffner. DEBUT 1989 Great Uncle Fishknife is Fughetta Faffner's uncle, another ghost. He helps to dematerialize Fughetta in the Ghost of Faffner Hall episode "Music Brings Us Together". The puppet was originally used as one of the ghosts in the song "We Must Believe in Magic" on episode 402 of The Muppet Show. Retrieved from "https://muppet.fandom.com/wiki/Great_Uncle_Fishknife?oldid=1157290" Categories: Muppet Characters Muppet Show Characters Ghost of Faffner Hall Characters The Muppets Characters Community content is available under CC-BY-SA unless otherwise noted.