Cast
- Colin Baker (The Doctor)
- James Wilby (Tenebris)
- Kirsty Besterman (Empress Cheni)
- Joseph Kloska (Dukhin)
- Jane Slavin (Teesha)
- Chris Porter (Vincol)
- John Banks (Boritz)
- Chook Sibtain (Athrid)
- Carol Noakes (Olerik / Nanny)
Doctor Who - The Monthly Adventures
166. Doctor Who: The Acheron Pulse
Written by Rick Briggs
Starring Colin Baker