List of Alien Races in DC Comics - G

G

• Galadorians - The Galadorians of Galador have lifespans measured in tens of thousands of years, and have power over matter and energy. Bed Adlain of Galador is their representative on Earth where he works as a shepherd in fields just outside Metropolis.
• Giants of Dimension Zero - The Giants of Dimension Zero are a technologically advanced, extra-dimensional species discovered by Green Arrow and his sidekick Speedy. They also meet Xeen Arrow, an alternate version of Green Arrow native to Dimension Zero.
• Giants of Ogyptu - The Giants of Ogyptu are blue skinned nude titans on the planet Ogyptu in the Vega system. Time appears to pass much slower for them than it does for other species, and they are for all intents and purposes immortal.
• Gil'Dishpan - The Gil'Dishpan are the oldest and most powerful, imperialistic, space-faring, aquatic extraterrestrial race in the DC Comics universe. They appear to be purple giant tube worms, and are powerful telepaths. The Gil'Dishpan have taken an interest in younger aquatic races such as the Hykraians, Qarians and the Atlanteans of Earth. The Gil'Dishpan were responsible for uplifting the Hykraians and giving them the gift of interstellar travel. Their homeworld is a frozen planet with methane oceans similar to the Lakes of Titan.
• Glazzonio -
• Gordanians - The Gordanians are a race of reptilian alien slavers who have colonized planet Karna and served the Citadel, enemies of the native Karnan feline race which they hunted to extinction.
• Graxions - an elf-like race from space sector 2815; see Green Lantern Arisia Rrab located near the Constellation Gemini.
• Grendians - Robotic beings capable of self-awareness and emotion. Stel of the Green Lantern Corps hails from Grenda
• Griks - The Griks are a race of amphibian spacefaring roboticists who are allies of Rann, were contracted to use their robots in Rann's mines.
• Grolls - alien invaders with cerebro-radiation rays
• Gryxians - yellow skin humanoid race from Gryx. Stealth from L.E.G.I.O.N. was a member of this race and was cast out of her society because she was born with special powers.
• Green Martians - The green martians are one of the three ethnic divisions of Mars, on Earth they are represented by J'onn J'onnz the Martian Manhunter.
• Guardians of the Clockwork Universe - A mysterious group that once recruited Captain Comet in their goals in protecting "the clockwork universe". (Not to be confused with the Oan Guardians)