Jessica Carney

Judith "Jessica" Carney was the granddaughter of William Hartnell, and author of his sole published biography, Who's There? The Life and Career of William Hartnell. She also starred in a short 2010 documentary about Hartnell, My Grandfather, the Doctor. Carney spoke frequently of her grandfather, and was interviewed in Thirty Years in the TARDIS, a documentary celebrating Doctor Who's 30th anniversary in 1993.

A fictionalised version of Jessica was played by Cara Jenkins in An Adventure in Space and Time, a 2013 docu-drama detailing her grandfather's time on the programme. The drama showed the close relationship between Judy and Hartnell, whom she idolised. "My grandfather is Doctor Who, and Doctor Who can do anything," she is shown saying in AAISAT. The real-world Carney was also interviewed in a behind-the-scenes featurette included in the docu-drama's DVD.