Hasval. The wiki doesn't usually name pages with epithets, does it?
Talk about it here.
Hasval the Destroyer was a blue, half-octopus, half-man creature, with many tentacles. Poised to invade Askenflatt Minor, he detected the presence of the Tenth Doctor on the planet and, using the pretence of an interview with "Jazami Paxxo" for The Solar News Show, tried to establish how much of a threat the Doctor was to his plans. Rose Tyler used Hasval's hologram generator against him by creating an army of Doctors, and Hasval the Destroyer left without destroying anything. (PROSE: The Hero Factor)