Major Terrorkon is one of the Battalasks and the main villain of The Sabre-Tooth Secret. He was one of the Battalask soldiers who was sent from his homeworld to recapture Fangal and the sabre-toothed cats, although he had no real loyalty to his government and secretly planned to take over Battalask himself. While most of the other Battalasks returned home, Terrorkon and a group loyal to him continued the hunt, eventually coming to Outpost Q. Terrorkon helped Speck the apatosaurus complete his Megascope in exchange for his cooperation in finding the sabre-tooths.