The Mysterious Planet (4)
Show: Doctor Who --> Season: 23 - The Trial of a Time Lord
AirDate: 9/27/1986
Runtime: 25
Voting: 4.5 (4)

Overview: All those on Ravolox are in exponentially greater peril than anyone can comprehend. If anything in the entire universe is to survive, it may come down to the Doctor arguing against machine logic over the value of life.
Lynda Bellingham
The Inquisitor
Michael Jayston
The Valeyard
Roger Brierley
Drathro (voice)
Joan Sims
Katryca
Tony Selby
Glitz
Adam Blackwood
Balazar
Glen Murphy
Dibber
Tom Chadbon
Merdeen