| Episode cast overview, first billed only: |
 | Wayne Webb | - | Lt. Cmdr. Matt McCabe |
 | Rivkah Raven Wood | - | President Vindenpawl (as Rebecca Wood) |
| Jacques Freydont | - | Chief of Staff Vreed Kaart |
 | Aaron Leddick | - | Press Secretary Tam Ensi |
| Barbara Clifford | - | Secretary of the Exterior Margaret Magowan |
| David O'Neill | - | Admiral Selek |
 | Heather Ashleigh | - | Science Intern Mara Onshul |
| Risha Denney | - | Commodore Shelby |
 | Joni Bovill | - | Praetor Yeshva |
| Andrew Foster | - | Decius |
| Kurt Wilson | - | Cmdr. Beckett |
| Karl Puder | - | Korg |
| Wendy L. Smith | - | Marion / Reporter |
| Consuelo Sanchez | - | Alice |
| Gordon Knapp | - | Security officer |
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