With the exception of the opening and/or closing theme sequences, these main characters did not appear in the following episodes of Fraggle Rock:
Gobo Fraggle[]
- Episode 119: The Great Radish Famine (mentioned)
- Episode 203: The Trash Heap Doesn't Live Here Anymore (mentioned)
- Episode 216: Junior Sells the Farm
- Episode 217: Fraggle Wars (mentioned)
- Episode 308: Believe It or Not (mentioned)
- Episode 316: The Battle of Leaking Roof
- Episode 322: Gunge the Great and Glorious (mentioned)
Uncle Traveling Matt[]
- Episode 119: The Great Radish Famine
- Episode 207: Mokey and the Minstrels (mentioned)
- Episode 216: Junior Sells the Farm
- Episode 217: Fraggle Wars
- Episode 310: The Secret Society of Poobahs
- Episode 401: Sprocket's Big Adventure
- Episode 402: Wembley's Wonderful Whoopie Water
- Episode 405: Junior Faces the Music
- Episode 411: Wonder Mountain
- Episode 501: Mirror, Mirror
- Episode 503: The Voice Inside (mentioned)
- Episode 506: Beyond the Pond
- Episode 507: Gone, But Not Forgotten
- Episode 508: Mokey, Then and Now
- Episode 511: The Gorg Who Would Be King
- Episode 512: The Honk of Honks
Wembley Fraggle[]
- Episode 216: Junior Sells the Farm
- Episode 316: The Battle of Leaking Roof
- Episode 410: Red's Blue Dragon
Mokey Fraggle[]
- Episode 114: The Challenge (mentioned)
- Episode 203: The Trash Heap Doesn't Live Here Anymore
- Episode 208: All Work and All Play
- Episode 308: Believe It or Not
- Episode 319: The Cavern of Lost Dreams
- Episode 322: Gunge the Great and Glorious (mentioned)
Boober Fraggle[]
- Episode 116: Capture the Moon
- Episode 208: All Work and All Play
- Episode 216: Junior Sells the Farm
- Episode 222: Doozer Is As Doozer Does
- Episode 308: Believe It or Not
- Episode 319: The Cavern of Lost Dreams
- Episode 322: Gunge the Great and Glorious
- Episode 410: Red's Blue Dragon
Red Fraggle[]
Sprocket[]
- Episode 223: Boober's Quiet Day (heard only)