Mary Ridge
From Tardis Wiki, the free Doctor Who reference
Mary Ridge (23 June 1925-20 September 2000[1]) directed the Doctor Who television story Terminus.
Ridge was one of the most prolific directors of Blake's 7; in fact, it was her work on Blake's 7 that attracted John Nathan-Turner's attention and led to her working on Doctor Who. She was not fond of her experience on Doctor Who due to the number of technical difficulties and setbacks that occurred during the production. (INFO: Terminus)