Cast
- Sylvester McCoy (The Doctor)
- David Schofield (Nostradamus / Conclave Leader)
- John Banks (Brors / Captain of the Guard / Bernardo)
- Caroline Keiff (Garilund / Computer Voice)
- Derek Carlyle (Kren / Second Nuncio)
- Nicholas Chambers (Larrett / Milo / First Nuncio)
Doctor Who - The Monthly Adventures
151. Doctor Who: The Doomsday Quatrain
Written by Emma Beeby Gordon Rennie
Starring Sylvester McCoy
