Doctor Who: The Ribos Operation

The Doctor is summoned by the mysterious and powerful White Guardian, and sent on a quest to find the six segments of the Key to Time, which, once assembled, will restore balance to the Universe. Joining the Doctor and K9 is the smart and sassy Romana, a Time Lord fresh from the Academy. Landing on the wintry planet of Ribos to locate the first segment, the TARDIS crew quickly find themselves embroiled in a little local trouble with a pair of conmen and an unstable warlord...

• 
  Tom Baker

  The Doctor
• 
  Mary Tamm

  Romana
• 
  John Leeson

  K-9 (voice)
• 
  Cyril Luckham

  The Guardian
• 
  Iain Cuthbertson

  Garron
• 
  Paul Seed

  Graff Vynda-K
• 
  Timothy Bateson

  Binro
• 
  Prentis Hancock

  Shrieve Captain