The Thanagarians are a race of winged humanoids from the planet Thanagar. At one point they sent an advance scout to Earth to survey it for unrevealed reasons. That scout was Lt. Shayera Hol who became known as Hawkgirl. Years later the Thanagarians arrived on Earth and claimed to be safeguarding it from an alien invasion it was not ready for. However, it was soon discovered they were using the Earth as a bypass so that the Thanagarians may thrive on a new planet, with their old one on the brink of destruction.