Laorie

 was an undermarshall called when the Eighth Doctor landed his TARDIS inside the school bus of Alicantis. She didn't believe the Doctor's story about responding to the distress call. A version from the future where the construction of the time lane in the time vortex collapsed, and she wanted to destroy the myth that created her civilisation, to cause a paradox. She became part of the creation myth along with Charlotte Pollard. (AUDIO: The Slaying of the Writhing Mass)