 | Candi Milo als Grumble Bugs (voice) |
 | Bob Murdy als Cuco (voice) |
| Angela Shelton als Miss Juicy / Speak & Spell (voice) |
 | André Sogliuzzo als Headache / Kickbutt (voice) |
 | Karl Wiedergott als Wallop (voice) |
 | Reno Wilson als Rex (voice) |
| Arlene Klasky | Creator |
| Arlene Klasky | Director |
| Arlene Klasky | Writer |
| Gábor Csupó | Executive Producer |
| Rudi Berden | Storyboard Artist |
| Robin Kay | Line Producer |
| Arlene Klasky | Executive Producer |
| Susan Ward | Line Producer |
| Amy McKenna | Line Producer |
