Gritog

Gritog was the king of the people of Spekra. When a spaceship from Earth entered Spekran space, Gritog had his fighters force the vessel to land and imprisoned its crew, believing them to be spies. When he later learned that the prisoners had been freed by the Doctor, John and Gillian, he ordered his men to shoot them and destroy the TARDIS, but they failed in both tasks. (TVC: Prisoners of Gritog)