Guest Stars Kevin Clash voices Uncle Travelling Matt Dave Goelz as Uncle Travelling Matt Dan Garza as Junior Gorg Ben Durocher voices Junior Gorg Andy Heyward voices Pa Gorg Frank Meschkuleit as Pa Gorg John Tartaglia voices Sprocket Donna Kimball voices Cotterpin Kanja Chen voices Pogey John Tartaglia voices Architect John Tartaglia voices Gunge Dan Garza voices Philo Aymee Garcia voices Majory the Trash Heap Frank Meschkuleit voices Large Marvin 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