Gerard Parkes (58)

Doc

Jerry Nelson (48)

Gobo Fraggle / Marjory the Trash Heap / Pa Gorg / Uncle Gobo Fraggle / Mervin Merggle / Fishface / Parrot / Architect Doozer / Feenie Fraggle / Radio Announcers (voice)

Steve Whitmire (23)

Wembley Fraggle / Sprocket the Dog / Mermer Merggle / Crusty Doozer / Venerable Sage Hambo / Murray the Minstrel / Flange Doozer / Sir Blunderbrain / Club Member #3 (voice)

Karen Prell (23)

Red Fraggle / Balsam the Minstrel / Wingnut Doozer / Judge Gaval Fraggle / Marly Fraggle / Gorg's Killer Souffle / Wingnut Fraggle / Fluffinella / Modem Doozer / The Beast / Baby Tree Creature (voice)

Dave Goelz (36)

Boober / Uncle "Traveling" Matt / Side Bottom / The World's Oldest Fraggle (voice)

Kathryn Mullen (42)

Mokey Fraggle / Cotterpin Dozer / Crosscut Doozer / Merboo Merggle / Rock Hockey Hannah / Wimple Fraggle / The Old Gypsy Lady / Sally Spotless / Tammy Shrub / Baby Doozer / Doozer #2 (voice)

Cheryl Wagner

Muppet Performer / Ma Gorg / Bonehead Fraggle / Lou Fraggle (voice)

Bob Stutt

Muppet Performer / Felix the Fearless / Wandering McMooch / Last of the Lily Creatures / The Avalanche Monster / Bigmouth Fraggle (voice)

Richard Hunt (31)

Junior Gorg (himself) / Gunge / Mudwell the Mudbunny / Herkimer Fraggle / The Spiderfly / Gillis Fraggle / Turbo / The Genie / Purple Fragglette / Fire Chief Fraggle / Flex Doozer / Background Fraggles (voice)

Jim Henson (46)

Cantus the Minstrel, Convincing John, Additional Muppets (voice) / Cantus the Minstrel (voice) / Convincing John (voice) / Convincing John (voice, uncredited)