Z
- Zambians - A race of humanoid people who had their planet destroyed by Qinoori raiders for minerals. Ferrin Colos joined the Darkstars after seeing his planet's destruction.
- Zandrians - The Zandrians of Zandria are a race of would be world conquerors incapable of harming sentient life.
- Zamarons - The Zamarons are a Maltusian descended race, cousins of similar offshoot races such as the Oans and Controllers.
- Zaons - Green Lantern G'paak's race
- Zarolatts - Energy race who were enslaved by the tyrannical Macrolatts. The Weird is a member of this race.
- Zaroxians - The Zaroxians of Zarox-13 are a race of green skinned rotund humanoids with advanced polymer science, and robotics technology. The alien conqueror known as Garguax is a Zaroxian.
- Zeerangans - The Zeerangans are a militaristic race hail from planet Zeeranga who attempted to conquer planet Omeron.
- Zilliphi - Taa's race
- Zoltams - The Zoltams of Zoltam are an advanced alien society with sound based technology, they are also able to use sound to power their cities. Zoltams have light yellow skin, wide flat skulls, and pointed ears.
- Zumoorians - The Zumoorians of Zumoor are humanoids. The golden energy rays of Zumoors moon appear to trigger the metagene in humans. Thomas Keith of Earth traveled to Zumoor with his dog Rovo, there he was adopted Chad and Vela Kazzan and rechristened Zarl Kazzan. Somehow Zarl and his dog Rovo gained metahuman powers equal to a Kryptonian which they used to protect Zumoor.
- Zwenites- Inhabitants of the planet Zwen, an ancient colony of Earth. The Zwenites developed the ability to transform themselves into static stone forms in order to deal with the planet's exceptionally long rotation around its sun. Zwen's most famous native is Stone Boy of the Legion of Substitute Heroes.
Read more about this topic: List Of Alien Races In DC Comics