"A man who is probably Chronotis reappears in PROSE: Unnatural History as Professor Daniel Joyce."
One of the authors of Unnatural History specifically denies this in a Usenet post:
http://groups.google.co.uk/group/rec.arts.drwho/msg/c1d45b12d98e3bcd?hl=en&
195.93.21.103 22:00, April 23, 2010 (UTC)
Prisoners of Shada
Should the prisoners of Shada be added to the cast list? Or should a list of them merely be added to the Story Notes?
My sources are from In Vision's issue 44 of Shada and Doctor Who Plotlines - Shada.
The prisoners and the actors / actresses who would of played them are:
Lucretia Borgia - Ann Lee
Boedicia - Joan Harsant
Lady Macbeth - Shirley Conrad
Salome - Julie Le Rousse
Executioner - John Cannon
Rasputin - Derek Moss
Nero - Barry Summerford
Gladiator - Steve Kelly
Genghis Khan - Dave Cooper
Dalek - Steve Ismay
Cyberman - Ridgewell Hawkes
Zygon - Les Shannon
Other prisoners not mentioned in the cast list but elsewhere in the magazine were:
Rungar, a war criminal
Sabjatric, a mass murderer
Wirrn