Dave Goelz

Boober Fraggle / Philo / Uncle Travelling Matt (voice)

Jerry Nelson

Gobo Fraggle / Pa Gorg/ Marjory the Trash Heap (voice)

Richard Hunt

Doozer/ Gunge / Junior Gorg/ Background Fraggles (voice)

Kathryn Mullen

Mokey Fraggle/ Cotterpin Doozer (voice)

Karen Prell

Red Fraggle/ Wingnut Doozer (voice)

Steve Whitmire

Wembley Fraggle / Sprocket the Dog (voice)

Gerard Parkes

Doc

Fulton Mackay

The Captain (UK version)