| Name | Character | Episodes |
|---|---|---|
| James Blendick | Galactus (voice) | 6 |
| John Neville | Eternity (voice) | 5 |
| Camilla Scott | Shalla-Bal (voice) | 5 |
| Elizabeth Shepherd | Infinity (voice) | 5 |
| Tara Rosling | Nova (voice) | 4 |
| Robert Bockstael | Pip the Troll (voice) | 4 |
| Marc Strange | Lord Glenn (voice) | 4 |
| Norm Spencer | Drax the Destroyer (voice) | 3 |
| Colin Fox | Uatu the Watcher (voice) | 3 |
| John Stocker | Ivar (voice) | 3 |
| Jennifer Darling | Nebula (voice) | 2 |
| Cedric Smith | Mentor (voice) | 2 |
| Roy Lewis | Ego the Living Planet (voice) | 2 |
| Elizabeth Hanna | Kili the Troll (voice) | 2 |
| Nicole Oliver | Gamma (voice) | 1 |
| Tara Rosling | Frankie Raye (voice) | 1 |
| David Hemblen | Husserl (voice) | 1 |
| David Hemblen | The Supreme Intelligence (voice) | 1 |
| Karl Pruner | Beta Ray Bill (voice) | 1 |
| Alyson Court | Amber (voice) | 1 |
| Don Francks | Kalek (voice) | 1 |
| Chris Britton | Zarek (voice) | 1 |