Tom Baker (The Doctor)
Peter Davison (The Doctor)
Colin Baker (The Doctor)
Paul McGann (The Doctor)
Adjoa Adhoh (Racnoss Empress)
Nigel Planer (Old Racnoss Emperor/ Herrax)
Andrew French (Racnoss Consort)
Lisa Kay (Alayna)
Pam Ferris (Amanda Steele)
Lorelei King (Georgia Donnelly)
Emma Lowndes (Phelan)
Matt Devitt (Bennetto)
Maya Sondhi (Katy Bell)
Andrée Bernard (Mary Sissinghurst)
Adèle Anderson (Eileen Nelthorpe)
Michael Fenton-Stevens (Rev Douglas Bell)
Jacqueline Pearce (Ollistra)
Jan Ravens (Dr Eva Morrison)
Himesh Patel (Biotech Dendry)
Tim Wallers (Commander Roxita/ Security Chief Raldon)