Special Guest Stars aespa as Themselves Guest Stars Kevin Clash as Uncle Travelling Matt Dave Goelz voices Uncle Travelling Matt Frank Meschkuleit as Uncle Travelling Matt Dan Garza voices Junior Gorg Ben Durocher as Junior Gorg Andy Heyward as Pa Gorg Frank Meschkuleit voices Pa Gorg Ingrid Hansen as Ma Gorg Aymee Garcia voices Ma Gorg John Tartaglia voices Sprocket Donna Kimball voices Cotterpin Kanja Chen voices Pogey Dave Goelz voices World's Oldest Fraggle John Tartaglia voices Architect Frank Meschkuleit as World's Oldest Fraggle Andy Heyward voices Wrench Ali J. Eisner voices Turbo Dan Garza voices Philo Aymee Garcia voices Majory the Trash Heap John Tartaglia voices Gunge Karen Prell voices Icy Joe Ingrid Hansen voices Lanford Aymee Garcia voices Henchy Co Starring Harvey Mason Jr. voices Background Singers Andrew Hey voices Background Singers Sam Ramirez voices Background Singers Britt Mason voices Background Singers Ana Krafchick voices Background Singers