Zoe Heriot

Zoe Heriot (sometimes spelled Zoe Herriot), or simply Zoe, is a fictional character played by Wendy Padbury in the long-running British science fiction television series Doctor Who. A young astrophysicist who lived on a space wheel in the 21st century, she was a companion of the Second Doctor and a regular in the programme from 1968 to 1969.

Character history

Zoe first appears in the serial The Wheel in Space, where she is the librarian on board Space Station W3, also known as the Wheel. When the Cybermen attack, she aids the Doctor and Jamie in defeating them before stowing away aboard the TARDIS. In David Whitaker's script for The Wheel in Space, Zoe's last name is spelled "Heriot", but the double-"r" misspelling is also seen in reference works.

Zoe's age is not given in the series, but according to initial publicity she was fifteen when she joined the TARDIS crew. She holds a degree in pure mathematics and is a genius, with intelligence scores comparable to the Doctor's. Coupled with her photographic memory and the advanced learning techniques of her era, this makes her somewhat like a human calculator, able to perform complicated mathematics in her head. Part of the reason for her wanting to travel with the Doctor is her chafing at the restrictions and sterile surroundings of her station-bound existence. However, her real-world experience is severely limited, causing her to get herself into trouble frequently.