DOCTOR WHO IN DETAIL

Jo Grant was the niece of a cabinet minister who had her assigned to UNIT, and the Brigadier asked her to be the Doctor's assistant. She was trained in cryptology, escapology, safebreaking and explosives.

She made a good impression on her first assignment by getting hypnotised by the Master and trying to explode a bomb in UNIT HQ.

She left to get married and go down the Amazon.

First regular appearance: Terror Of The Autons

Final regular appearance: The Green Death