List of alien races in DC Comics is a list of fictional extraterrestrial races that have appeared in comic book titles published by DC Comics, as well as properties from other media that are listed below, with brief descriptions and accompanying citations. Overview There are countless different extraterrestrial races in the DC Comics universe. The vast majority are humanoid in structure. United Planets The United Planets is a fictional governing body which is active starting in the 21st century all the way to the 31st Century. The planets of the Solar System and Htrae are known members alongside the artificial planet-sized satellites, the buffer planets that were seeded by Mon-El, and the neighboring empires. 0-9 5th Dimensional Imps Zrfff is the homeworld of all 5th Dimensional Imps, including Mister Mxyzptlk, Miss Gsptlsnz, Vyndktvx, Brpxz, Mister Genie (Genro), Quisp, Bat-Mite, Kcid Nosyarg (Larry), Zook, Gazook and Mopee. 5th Dimensional Imps in other media The 5th Dimensional Imps appear in Supergirl. A Adaptoids The Adaptoids were blob-like creatures in the vicinity of the star Arcturus that traveled to Earth-One in attempt to wipe out the human race. Able to adapt to any threat, they were defeated by the Justice League when they were exposed to the Thanagarian equalizing disease. Aellans The Aellans are the yellow-skinned reptilian humanoid peoples of Aello (Stormswift), Demonia, Harpis and Doc of Aello were all members of the Omega Men. Alien Invaders The Alien Invaders are the nameless primary antagonists of Armageddon: The Alien Agenda. Almeraci The Almeraci are a humanoid race of technologically advanced warriors with psionic abilities similar to those of the Euphorix. The Almeraci are ruled by the House of the Blood Royale, a matriarchy of superpowered monarchs who maintain their bloodline and psionic status through selective breeding. The Almeraci choose mates through ceremonial gladiatorial competitions; whichever male can defeat a prospective female in battle earns her hand in marriage. This species is represented by Maxima - Queen of Almerac - as well as her handmaiden Sazu and her onetime betrothed Ultraa. Aloi The Aloi are blue-skinned aliens with ridged foreheads. The Aloi are at war with the Margoi over a device known as the "Grayl". They were represented by Tumlat. Alstairans The Alstairans of Alstair are one of four technologically advanced and constantly at war spacefaring races native to the Antares system. The most well known Alstairan is their ruler, the alien plant elemental