David (The Eight Truths)

From Tardis Wiki, the free Doctor Who reference

David was a research assistant for Dr Avishka Sangakkara in 2015. He helped the Eighth Doctor to try to find a missing space probe. He told the Doctor about the technologies on the probe. He later joined the Eightfold Truth. He was dedicated to his work. (AUDIO: The Eight Truths) He was absorbed into the queen's psychic web. (AUDIO: Worldwide Web)