Mathematician (Silver Nemesis)

An unnamed mathematician worked for Lady Peinforte, working out the date of Nemesis' return to Earth.

In 1638, he eventually dated it to 23 November 1988. Peinforte prepared a concoction to enable herself and her servant Richard Maynarde to travel there, the last ingredient of which was human blood. She killed the unfortunate mathematician to get this. (TV: Silver Nemesis)

Behind the scenes

 * Leslie French's first name is misspelled as "Lesley" in Radio Times for part one.