Guest Stars Kevin Clash voices Uncle Travelling Matt Dave Goelz as Uncle Travelling Matt Dan Garza as Junior Gorg Ben Durocher voices Junior Gorg John Tartaglia voices Sprocket Donna Kimball voices Cotterpin John Tartaglia voices Architect Andy Heyward voices Wrench Ali J. Eisner voices Turbo Frank Meschkuleit voices Mantivore Ingrid Hansen voices Shrub Kira Hall voices Sapling Co Starring Andrew Hey voices Background Singers Harvey Mason Jr. voices Background Singers Sam Ramirez voices Background Singers Britt Mason voices Background Singers Ana Krafchick voices Background Singers