Jerry Nelson
Gobo Fraggle / Marjory the Trash Heap / Pa Gorg / Uncle Gobo Fraggle / Mervin Merggle / Fishface / Parrot / Architect Doozer / Feenie Fraggle / Radio Announcers (voice) (96 eps)
Steve Whitmire
Wembley Fraggle / Sprocket the Dog / Mermer Merggle / Crusty Doozer / Venerable Sage Hambo / Murray the Minstrel / Flange Doozer / Sir Blunderbrain / Club Member #3 (voice) (96 eps)
Karen Prell
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) (96 eps)
Dave Goelz
Boober / Uncle "Traveling" Matt / Side Bottom / The World's Oldest Fraggle (voice) (96 eps)
Kathryn Mullen
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) (96 eps)
Gerard Parkes
Doc (96 eps)
Bob Stutt
Muppet Performer / Felix the Fearless / Wandering McMooch / Last of the Lily Creatures / The Avalanche Monster / Bigmouth Fraggle (voice) (96 eps)
Richard Hunt
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) (72 eps)
Jim Henson
Cantus the Minstrel, Convincing John, Additional Muppets (voice) (32 eps)
Cheryl Wagner
Muppet Performer / Ma Gorg / Bonehead Fraggle / Lou Fraggle (voice) (24 eps)