Gareth (The Spectre of Lanyon Moor)
From Tardis Wiki, the free Doctor Who reference
Gareth was a friend of Evelyn Smythe's, who lectured in history at the University of Oxford. In 2000, Evelyn phoned him from Pengriffen Manor's library, to confirm her suspicions about Lanyon Moor, and where she'd heard the name before. (AUDIO: The Spectre of Lanyon Moor)