Jonathan Moran
From Tardis Wiki, the free Doctor Who reference
Jonathan Moran was the commanding officer of the Drum. He was scorched by rocket engines and transformed into a ghost by Prentis.
His ghostly form stalked the crew throughout the night, following them to the Faraday cage, which prevented the ghosts from entering. However, when the Twelfth Doctor and Clara Oswald arrived, Moran and Prentis went after them, attacking them with weapons but ultimately retreating through a wall. When the 'day mode' of the base flashed on, however, Moran and Prentis dissipated, allowing the crew to move freely throughout the base without being attacked.
When the base unexpectedly went into night mode again, (TV: Under the Lake)
