Guest Stars
![Uncle Travelling Matt](https://static.tvmaze.com/uploads/images/medium_portrait/392/981817.jpg)
Kevin Clash
voices Uncle Travelling Matt![Junior Gorg](https://static.tvmaze.com/uploads/images/medium_portrait/392/981815.jpg)
Ben Durocher
voices Junior Gorg![Pa Gorg](https://static.tvmaze.com/uploads/images/medium_portrait/392/982017.jpg)
Andy Heyward
voices Pa Gorg![Sprocket](https://static.tvmaze.com/uploads/images/medium_portrait/392/980384.jpg)
John Tartaglia
voices Sprocket![Cotterpin](https://static.tvmaze.com/uploads/images/medium_portrait/392/981819.jpg)
Donna Kimball
voices Cotterpin![No image yet, be the one to add it. No image (yet).](https://static.tvmaze.com/images/no-img/no-img-portrait-clean.png)
Kanja Chen
voices Pogey![John Tartaglia](https://static.tvmaze.com/uploads/images/medium_portrait/391/979958.jpg)
John Tartaglia
voices Architect![Gunge](https://static.tvmaze.com/uploads/images/medium_portrait/392/981814.jpg)
John Tartaglia
voices Gunge![Frank Meschkuleit](https://static.tvmaze.com/uploads/images/medium_portrait/127/318989.jpg)
Frank Meschkuleit
voices Large MarvinCo Starring
![No image yet, be the one to add it. No image (yet).](https://static.tvmaze.com/images/no-img/no-img-portrait-clean.png)
Andrew Hey
voices Background Singers![No image yet, be the one to add it. No image (yet).](https://static.tvmaze.com/images/no-img/no-img-portrait-clean.png)
Sam Ramirez
voices Background Singers![No image yet, be the one to add it. No image (yet).](https://static.tvmaze.com/images/no-img/no-img-portrait-clean.png)
Britt Mason
voices Background Singers![No image yet, be the one to add it. No image (yet).](https://static.tvmaze.com/images/no-img/no-img-portrait-clean.png)