Guest Stars Kevin Clash as Uncle Travelling Matt Dave Goelz voices Uncle Travelling Matt Ben Durocher as Junior Gorg Dan Garza voices Junior Gorg Frank Meschkuleit voices Pa Gorg Andy Heyward as 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 Frank Meschkuleit as World's Oldest Fraggle John Tartaglia voices Architect Karen Prell voices Icy Joe Donna Kimball voices Storyteller John Tartaglia voices Barry Blueberry Kanja Chen voices Grizzard Ali J. Eisner voices Balsam Kira Hall voices Brio Frank Meschkuleit voices Gluey Rudey Jordan Lockhart voices Murray Frank Meschkuleit voices Mantivore Aymee Garcia voices Brool Ingrid Hansen voices Little Rago Ali J. Eisner voices Coop Kanja Chen voices Mezzo's Band Karen Prell voices Mezzo's Band Dan Garza voices Mezzo's Band Co Starring Harvey Mason Jr. voices Background Singers Andrew Hey voices Background Singers Sam Ramirez voices Background Singers Ana Krafchick voices Background Singers Binney Montgomery voices Background Singers