De Freggels Uncle Matt's Discovery (1983–1987) Online
While Uncle Matt is back for a visit, he discovers a cavern with magical transporting archways.
| Episode credited cast: | |||
 | Terry Angus | - | Muppet Performer |
 | Dave Goelz | - | Boober Fraggle / Uncle Travelling Matt (voice) |
| Tim Gosley | - | Muppet Performer |
 | Kathryn Mullen | - | Mokey Fraggle (voice) |
 | Jerry Nelson | - | Gobo Fraggle (voice) |
| Simon O'Brien | - | BJ (UK version) |
 | Gerard Parkes | - | Doc (as Gerry Parkes) |
| John Pattison | - | Muppet Performer |
| Karen Prell | - | Red Fraggle (voice) |
| Sandra Shamas | - | Muppet Performer |
 | Bob Stutt | - | Muppet Performer |
| Nikki Tilroe | - | Muppet Performer |
| Cheryl Wagner | - | Muppet Performer |
 | Steve Whitmire | - | Wembley Fraggle / Sprocket the Dog (voice) |