Tom Girton was an inhabitant of Devil's End and a member of the Master's coven. He informed the Master that the Third Doctor had arrived at the Cloven Hoof.
He later stole a UNIT helicopter and tried to kill the Doctor by driving him into Azal's heat barrier. After several failed attempts to do so, Girton accidentally crashed into the barrier, killing himself. (TV: The Dæmons)
Behind the scenes
Girton is renamed Tom Wilkins in the novelisation.