Anita (Silence in the Library)

Anita was one of the members of the crew that came to the Library, she was a human archaeologist from the 51st century. Along with Proper Dave and Other Dave she was taken over by the Vashta Nerada, but the Doctor, River Song and Strackman Lux thought that she was still alive because the Doctor turned the light off in her space helmet and she didn't keep repeating herself. But when the doctor turned her helmet back on he realised that she was a suit creature. She then died. (DW: Silence in the Library/Forest of the Dead)