Clem Svorsen

From Tardis Wiki, the free Doctor Who reference

Clem Svorsen was a resident of Christmas approximately 750 years into the Eleventh Doctor's residency. He worked on his family's farm and was the eldest of three brothers. At one point, he was controlled by the Mara and acted as a sentry to guard other residents and the Doctor from gaining entrance to the farm. (PROSE: The Dreaming)