| Cast overview, first billed only: |
 | Joseph Langham | - | Lex (voice) |
| Steve Sanders | - | Dr. A. Mastaba / Dane (voice) |
| Cara D. Briggs | - | Dr. Escher (voice) |
| Woody Skaggs | - | Gen (voice) |
 | Ryan Wickerham | - | Caynan / Hanger Guard (voice) |
| Larry Guillot | - | Tumolt / Dropship Roenik (voice) |
| Jim McIntyre | - | Dropship Chelios (voice) |
| Michael Chenault | - | Cell Two Guard (voice) |
| Bob Cook | - | Control Guard (voice) |
| Bruce Lemons | - | Hallway Guard (voice) |
| Mary Lang | - | Computer #1 (voice) |
| John Tipton | - | Computer #2 (voice) |
| Kirk Winterrowd | - | Computer 3 / Mecho / Temple Marine (voice) |
| Kathy MacNary | - | Radio Crosstalk (voice) |
| Jennifer Evans | - | Hypobot (voice) |
