Doctor Who: The Armageddon Factor
The final segment of the Key to Time is at the heart of a devastating war between neighbouring planets Atrios and Zeos. The Fourth Doctor discovers that a sinister entity is manipulating events and the cost of obtaining the final segment may be more personal than he imagined.
Top Billed Cast
Tom Baker
The Doctor
Mary Tamm
Romana
John Leeson
K-9 (voice)
John Woodvine
Marshal
Lalla Ward
Princess Astra
Davyd Harries
Shapp
Susan Skipper
'Heroine'
John Cannon
Guard
Pat Gorman
Pilot
William Squire
The Shadow
Barry Jackson
Drax
Valentine Dyall
The Black Guardian
