Nicknamed 'Greys' by their color, the Maians have a deep interest in the universe and explore the regions of space for knowledge that they wished to learn. However, they were dead locked in a deep struggle against the reptilian Skedar and both sides were eventually forced into a peace treaty. During their time of post-war, the Maians eventually discovered Earth and made contact with an inhabitant whom they grew fond with due to his welcoming approach. As such Daniel Carrington is permitted to summon his newly-founded ET allies in times of desperate needs.