| Name | Character | Episodes |
|---|---|---|
| Jim Cummings | Dragon (voice) | 26 |
| Jeff Bennett | Howard Niseman / Barbaric / Mako (voice) | 26 |
| Rob Paulsen | Octopus (voice) | 26 |
| Kath Soucie | Alex Wilde (voice) | 26 |
| Tony Jay | Overlord (voice) | 26 |
| Danny Mann | OpenFace (voice) | 26 |
| Dorian Harewood | Frank Darling (voice) | 26 |
| Paul Eiding | (voice) | 26 |
| Marcelo Tubert | (voice) | 26 |
| Mark Hamill | (voice) | 13 |
| Frank Welker | Arachnid / Basher (voice) | 13 |
| Peter Cullen | Bludgeon (voice) | 13 |
| Robert Picardo | (voice) | 13 |
| Candi Milo | (voice) | 13 |
| Neil Ross | (voice) | 13 |
| Jennifer Hale | She-Dragon (voice) | 5 |
| Frank Welker | Arachnid (voice) | 2 |
| René Auberjonois | Horde (voice) | 2 |
| Michael Dorn | The Warrior King (voice) | 1 |