Jacob Gryffen (ghost)
From Tardis Wiki, the free Doctor Who reference
This anomaly was not the real Jacob Gryffen who had perished long ago. He was a negative, like that of a photograph. He was created by Professor Gryffen's continual attempts to rescue his wife and children with The Spacetime Manipulator. This impacted on the continuum, warping reality into their shapes. These ghostly apparitions invaded the mansion and tormented K9 and the youngsters as they were Gryffen's new family and they needed to be disposed of for the ghosts to move in. They were banished back into The Void where they were trapped forever more (TV: The Fall of the House of Gryffen)
