“When children write to me, they demand sometimes over and above what I can provide, but I send them a photograph and sign it and answer their letters. One little child wrote to me not so long ago, which is rather charming, she told me in her letter how much she liked the show, and ended up saying "When I grow up I will marry you” - aged four and a half!“

- Interview with William Hartnell by Roy Plomley of "Desert Island Discs” on the 2nd of August, 1965.

Courtesy of: “The Doctor Who Handbook: The First Doctor” - Virgin Books (1994)