Earth
Earth - The third planet in the Solar system. It is home to the Three Races, humans, gargoyles, and Oberon's Children. It contains a plethora of plant and animal life. Earth, sometimes referred to as Terra, orbits the Sun, also called Sol, and has one sattelite devoid of life, called the moon, or Luna.
In Gargoyles, Earth is not the only planet with life, sentient or otherwise, as there is Nokkar, and his enemy, the Space-Spawn.