Victor Bergman records a Moonbase Alpha status report on his commlock in the Medical Centre, whilst the Alphans watch in the Command Centre.
| Actor | Role |
|---|---|
 Barry MorseVictor Bergman | Victor Bergman |
 Martin LandauCommander John Koenig (archive footage) | Commander John Koenig (archive footage) |
| WWayne BrooksJackie Crawford (archive footage) | Jackie Crawford (archive footage) |
 Barbara BainDoctor Helena Russell (archive footage) | Doctor Helena Russell (archive footage) |
 Anton PhillipsDoctor Bob Mathias (archive footage) | Doctor Bob Mathias (archive footage) |
 Zienia MertonSandra Benes (archive footage) | Sandra Benes (archive footage) |
 Anouska HempelAnnette Fraser (archive footage) | Annette Fraser (archive footage) |