Cast Doctor Who - Tom Baker Adric - Matthew Waterhouse Nyssa - Sarah Sutton Tremas - Anthony Ainley Kassia - Sheila Ruskin The Keeper - Denis Carey Seron - John Woodnutt Katura - Margot van der Burgh ...

Every dream exists on the precipice of nightmare. Nowhere else but in the subconscious is the divide between comfort and horror so narrow, and so fragile. It is almost as if a dream is just waiting to ...

Another TARDIS occupant who shared a lot of screen time with Tegan was Sarah Sutton's Nyssa of Traken. Nyssa wasn't as argumentative as Tegan. She was often the peacemaker on board the time machine, ...

Nyssa was the daughter of Tremas, a nobleman of Traken who met the rather unfortunate fate of becoming possessed by the Master. Traken itself was also the victim of one of the Master's many nefarious ...