Dave Goelz
— Boober Fraggle / Uncle Travelling Matt / Self
Jim Henson
— Cantus the Minstrel / Convincing John / Self / Host
Richard Hunt
— Junior Gorg / Self
Jerry Juhl
— Self
Kathryn Mullen
— Mokey Fraggle / Cotterpin Doozer / Self
Jerry Nelson
— Gobo Fraggle / Marjorie the Trash Heap / Pa Gorg / Self
Karen Prell
— Red Fraggle / Self
Steve Whitmire
— Wembley Fraggle / Sprocket the Dog / Self (voice)
Philip Balsam
— Self