Zoe Heriot

Zoe Heriot was a companion of the Second Doctor.

Zoe was a young scientist from the late 21st century who accompanied the Doctor and Jamie McCrimmon in their travels aboard the Doctor's TARDIS. She was one of the very few companions of the Doctor's that was as smart, and at times smarter than the Doctor himself. They would often compete with one another when tackling situations that required their intellects. Her memories of the Doctor and Jamie were erased after encountering the Time Lords.

Born circa 2069, Zoe was taken from her family as a young child and subject to harsh mental and physical conditioning for brilliant children in a scheme known as the Elite Programme. She later became one of its chief opponents. (AUDIO: The Memory Cheats, The Uncertainty Principle, The Dying Light)

When she was eight years old, she read Oscar Wilde's complete works, including The Picture of Dorian Gray, in a day. (AUDIO: Echoes of Grey)

Zoe's home was a terrestrial city later shown to her in the White Void. (TV: The Mind Robber) At age 16, she was an astrometricist first class and astrophysicist on board Space Station W3 (a.k.a. the Wheel) when she met the Doctor and Jamie in 2079. (AUDIO: The Uncertainty Principle, Dying Light) She introduced herself to them as "astrophysicist, pure mathematics major", to which her colleague, Dr Gemma Corwyn, added "with honours". Zoe had an eidetic memory. She was described by her colleagues as "the librarian". She was very bad at history, as evidenced by her lack of knowledge of the Daleks, the Ice Warriors, and the T-Mat fiasco. (TV: The Wheel in Space, The Seeds of Death) Having been taught only the value of logic, her training left her emotionally underdeveloped. This lack of balance led to conflict. Some of her colleagues challenged her about her apparent lack of personal interest in the Wheel when it was about to be struck by meteorites. When she met the Doctor, Zoe was presented with a case study in how illogical, intuitive actions and instinct could be successful.